Products Cement Agglomeration And Weathering: Complete Guide

The weathering of the cement is the silent enemy of the storage: the cement that waits in the silo, the warehouse and the ship loses its quality to the moisture and the carbon dioxide of the air: the fresh product of the mill, perfectly certified, becomes the lumpy, weakened material that clogs the silos and disappoints the client: the agglomeration of the cement, the formation of the lumps and the pack set of the silo discharge, is the physical face of the same chemistry: the hydration that the mill balanced so carefully, started prematurely by the storage humidity: the product guide of the 2002 series is the complete manual of this battle: the mechanisms, the storage disciplines, the silo designs and the salvage practices.

The Complete Cement Technical Package (931 files including the books, the courses, the Excel tools and the presentations: $249.99 one-time: instant download via the PayPal payment) includes this storage and weathering guide with the tables of the storage losses, the silo practice and the quality controls: this article walks the document: the mechanisms of the agglomeration, the pack set, the prehydration, the warehouse and the silo disciplines: the reader closes the page with the complete picture of the cement storage battle.

Why does the storage deserve its own volume of the series? Because the cement industry loses measurable millions to the weather of the storage every year: the lumps that clog the silo bottoms, the cement that must be re-milled or downgraded, and the shipments rejected by the clients because the cement arrived pre-hydrated: the storage discipline is the last stage of the production quality, and its neglect undoes the work of the kiln and the mill: the guide of the package documents the storage science with the numbers, and the plant that follows it protects the certified quality of every ton until the moment of the placement in the client’s mixer.

1. The Enemies of the Stored Cement: The Three Agents of the Damage

The stored cement faces three environmental agents, and the guide opens the subject with the enemy map:

• The moisture: the water vapor of the air reacts with the cement: the surface hydration of the particles begins: the moisture is the primary enemy, and its attack starts at the relative humidities above 60 to 70%: the warehouse climate is the first battlefield;
• The carbon dioxide: the CO2 of the air carbonates the hydrated surfaces and the free lime of the clinker: the carbonation is slower than the hydration but continuous: the combination of the CO2 and the water is the weathering chemistry of the storage;
• The temperature: the warm cement from the mill cools in the storage, and the warm moist air can condense on the cool surfaces: the temperature differences of the silo walls and the bag stacks create the local humidity: the thermal effects amplify the moisture attack;
• The vibration and the pressure: the pressure of the deep silos and the vibration of the transport compact the stored material: the compaction is the physical partner of the chemical damage: the deep silo bottom consolidates the agglomerating cement into the rock-hard mass;
• The time: all the agents work with the time: the cement stored for the month loses more than the cement stored for the week: the storage life of the cement is the treaty between the environmental attack and the rotation discipline;
• The combination: the practical damage is the combination of the agents: the humid summer, the deep silo and the long retention produce the worst cases: the guide’s case studies of the damaged stocks are the combinations, never the single cause;

The enemy map sets the strategy of the later chapters: the warfare of the storage is fought with the humidity control, the air exclusion, the temperature discipline and the rotation: the guide organizes the defense around the four weapons, and every practice chapter of the volume is the deployment manual of one weapon: the plant that knows the enemies plans the defense before the summer arrives.

2. The Agglomeration: The Lump Formation and its Causes

The lumps of the cement are the visible damage of the storage: the guide’s agglomeration chapter explains the formation mechanisms and the classification of the lumps:

• The moisture-bridge lumps: the water condenses between the particles and the surface hydration bonds them: the soft lumps of the humid air can be broken by the screening: the earliest stage of the agglomeration: the caking of the surface layers;
• The reaction-hardened lumps: with the time and the moisture the hydration proceeds deeper: the needle crystals of the ettringite and the C-S-H bridge the particles permanently: the hard lumps that resist the screening and clog the mills: the irreversible stage of the damage;
• The gypsum phase: the same enemy: the gypsum of the cement re-crystallizes and the hemi- and the dihydrate transformations contribute to the bonding: the sulfate chemistry of the products series appears again in the storage story: the single chemistry, the many theaters;
• The freezing-wetting cycles: in the cold climates the stored cement wets and freezes: the ice crystals disrupt the particles and the thawed material consolidates: the seasonal damage of the northern warehouses: the freeze-thaw of the stored cement, documented in the guide’s climate chapter;
• The classification of the damage: the guide’s lump classification table grades the damage from the surface caking to the rock-hard mass, with the handling recommendation for each grade: the screening, the re-grinding, the downgrading and the rejection: the salvage decision tree of the standard grades;
• The prevention: the clean and the dry atmosphere, the short retention and the moisture-tight packaging: the prevention is cheaper than the salvage: the guide’s prevention checklist summarizes the sections that follow: the agglomeration chapter is the diagnosis, the later chapters are the cure;

The agglomeration chapter gives the quality engineer the language of the damage: the soft caking, the hard lumps and the rock mass are the grades with the distinct remedies: the plant that inspects its stocks with the classification reads the storage health at the glance: the guide’s photo plates of the lumps at the stages train the eye of the warehouse supervisor, the cheapest instrument of the storage control.

3. The Pack Set: The Silos that Refuse to Discharge

The pack set is the silo’s specific disease: the cement consolidates in the bottom cone of the silo and refuses to flow: the guide’s pack set chapter is the classic of the storage literature:

• The mechanism: the pressure of the silo column plus the moisture bonding compact the cement at the discharge zone: the arch forms over the outlet and the empty silo theory of the plant meets the reality: the material that will not move: the flow interruption of the dispatch;
• The moisture link: the pack set accelerates when the silo breathes: the empty silo inhales the humid air, the cement absorbs the moisture and the consolidation follows: the silo ventilation and the airtight seals are the moisture defenses of the silo system;
• The temperature link: the warm cement entering the silo cools and the air inside the silo condenses on the cold walls: the condensate drips into the cement and the local wetting begins: the cooling cement and the morning air are the classic combination of the pack set seasons;
• The discharge aids: the aeration pads at the silo bottom, the air slides, the vibrators and the discharge cones: the mechanical and pneumatic weapons against the arching: the design and the maintenance of the aids are the daily practice of the silo section;
• The air-entraining agents: the plants add the small doses of the air-entraining agents at the mill, typically the tens of parts per million, which coat the particles with the air film and keep the cement flowing: the agent improves the discharge at the cost of the minor density loss: the balance of the flow and the packing;
• The emergency discharge: the rodding, the pneumatic lancing and the safe-entry procedures of the blocked silo: the dangerous work of the silo recovery: the guide’s safety chapter of the silo entry is the mandatory reading of the maintenance teams: the suffocation and the engulfment risks of the cement silos, treated with the full seriousness;

The pack set chapter is the mechanical face of the storage chemistry: the plant that understands the arching designs its silos with the steep cones, the aerated bottoms and the correct outlet sizes: the guide’s silo design tables, the cone angles and the outlet diameters against the material flow properties, are the reference pages of the plant designers and the rehabilitation projects: the pack set is the disease of the geometry, cured by the geometry.

4. The Weathering: The Quantified Loss of the Quality

The weathering of the cement is measurable, and the guide’s tables put the numbers on the losses: the strength, the setting and the fineness after the storage periods:

Table 1: The typical quality losses of the stored cement (open storage, humid climate)

Storage period	Blaine, m²/kg (loss)	Setting: initial, min (change)	28-day strength, % of fresh	Condition
Fresh	350 (reference)	100 (reference)	100	Free-flowing
2 weeks	− 2 to 4	+ 10 to 20	97 – 99	Free-flowing, mild caking
1 month	− 5 to 10	+ 20 to 40	93 – 97	Soft lumps at the walls
3 months	− 10 to 20	+ 40 to 80	85 – 92	Hard lumps, screening needed
6 months	− 15 to 30	+ 60 to 120	75 – 85	Severe agglomeration, re-grind or down-grade

The table quantifies the price of the waiting: the cement stored for the three months in the open warehouse of the humid climate loses the 10 to 15% of its strength, the setting slows by the hour or more, and the agglomeration forces the handling costs: the numbers are the economics of the storage: a 100,000-ton annual production stored for the average of the two months carries the weathering bill in the value of the downgraded tons and the re-grinding energy: the guide’s storage-cost model converts the losses into the currency of the plant and justifies the warehouse investments with the arithmetic.

The storage quality of the airtight and the dry conditions tells the opposite story: the cement held in the sealed silos with the dry air and the short rotation retains its certified quality for the months: the quality window of the storage is the management achievement, not the accident of the climate: the table of the guide also covers the tropical and the arctic regimes, because the exporting plants ship the cement across the climates and the storage story follows the cargo from the production to the port, the ship and the destination warehouse.

5. The Prehydration: The Chemistry of the Silent Damage

The prehydration is the chemical name of the weathering damage: the measurable hydration of the cement before its intended use, and the guide’s chemistry chapter explains the silent process:

• The surface reaction: the water vapor of the storage reacts with the particle surfaces: the aluminate reacts first forming the ettringite and the hydrated calcium aluminate, followed by the surface C-S-H of the alite: the reaction products form the shells that the later mixing must overcome;
• The measurable index: the prehydration degree is quantified by the loss on ignition of the cement and by the X-ray diffraction of the hydrate peaks: the fresh cement carries the ignition loss below 1%, the weathered cement above: the guide’s prehydration table maps the ignition loss to the damage level;
• The consequences: the prehydrated cement shows the reduced strength, the changed setting and the increased water demand: the surface hydration consumed the reactive material and the hydrate shells resist the fresh water: the product loses the edge of its certification: the complaint of the client begins at the mixer;
• The sulfate complication: the prehydration of the free lime and the aluminate disturbs the sulfate balance of the setting: the delayed setting or the flash behavior of the weathered cement: the sulfate chemistry of the series intersects the storage story at this point: the single chemistry, the many theaters;
• The detection: the accelerated detection methods of the guide: the differential thermal analysis and the heat-of-wetting measurement flag the prehydrated production: the quality gate of the warehouse releases only the healthy material: the detection costs the minutes and prevents the weeks of the disputes;
• The acceptance threshold: the plant’s internal threshold of the prehydration, typically the ignition loss below 1.5% for the release: the threshold is the plant’s own margin, stricter than the standard limits: the release discipline of the guide gates every silo and every ship;

The prehydration chapter gives the storage science its chemical anchor: the visible lumps and the pack sets of the earlier chapters are the macroscopic faces of the same molecular process: the plant that measures the prehydration reads the storage health at the earliest stage, before the lumps form and the strength falls: the measurement is the earliest warning of the storage discipline, and the guide equips the laboratory with the methods and the thresholds.

6. The Warehouse Discipline: The Storage Practice of the Plant

The warehouse is the first theater of the storage battle, and the guide’s warehouse chapter is the practice manual of the storage supervisor:

• The dry enclosure: the warehouse walls and the roof keep the rain and the ground moisture away: the concrete floor above the groundwater with the vapor barrier: the building of the warehouse is the first line of the defense: the guide’s warehouse specification lists the construction requirements;
• The ventilation versus the sealing: the paradox of the warehouse: the ventilation removes the humidity of the warm cement, but the sealed enclosure protects the dry cement from the outside air: the resolution: the air-lock entries and the moisture-controlled vents: the humidity target of the warehouse, below 60% relative humidity, is the operating number of the supervisor;
• The stack rotation: the first-in-first-out discipline of the bag stock: the stacks are dated, the oldest is shipped first and the fresh production never buries the old: the rotation is the cheapest storage instrument of the plant: the guide’s stock cards and the rotation reports implement the discipline;
• The stack limits: the stack height and the stack width follow the bag strength and the air circulation: the tall stacks compress the lower bags and restrict the airflow: the stacking rules of the guide protect the bottom layers: the geometry of the bag stack is the geometry of the preservation;
• The inspection rounds: the weekly inspection of the stack surfaces, the wall condensate and the floor moisture: the early detection of the wet spots and the damaged bags: the inspection checklist of the guide trains the warehouse crew: the eyes of the plant on the enemy’s earliest moves;
• The damage response: the damaged bags removed, the wet spots ventilated and the emergency transfer of the affected stock: the response drill of the guide converts the inspection findings into the immediate actions: the warehouse is the living organism of the storage discipline, and the drill keeps it healthy;

The warehouse chapter is the daily practice of the storage war: the enclosure, the humidity, the rotation, the stacking, the inspection and the response: the six disciplines of the guide, applied by the trained crew: the plants that run the warehouse discipline report the storage losses of the few percent against the double digits of the neglected warehouses: the discipline is the free insurance of the stored quality, and the guide is the policy document.

7. The Silo Design and the Discharge: The Engineering of the Flow

The bulk silo is the second theater of the storage, and the guide’s silo chapter is the engineering manual of the storage vessels:

Table 2: The silo discharge requirements of the storage practice

Silo element	Typical design value	Purpose
Cone angle	55 – 70° from the horizontal	The mass flow without the stagnant zones
Aeration pads	Porous tiles at the bottom cone	The fluidization of the discharge
Air flow of the aeration	0.02 – 0.05 Nm³/min per m² of the pad	The discharge assistance
Moisture of the silo air	Dry nitrogen or dry air blanket	The moisture protection of the stored cement
Outlet size	Matched to the discharge rate	The flow capacity of the dispatch
Ventilation with the bag filter	Filtered vents with the condensate drains	The pressure balance and the air exclusion

The silo design follows the flow physics of the stored material: the steep cones produce the mass flow in which the whole column moves and the stagnant zones, the hiding places of the pack set, disappear: the aeration pads fluidize the discharge bed and the dry-air or the nitrogen blankets protect the stored cement from the moisture: the guide’s table of the silo elements is the checklist of the new designs and the rehabilitation audits: the plant engineers walk the silos with the table and find the weaknesses of the old vessels: the silo is the engineered defense of the bulk cement, and the engineering is the subject of the chapter.

The level measurement of the silos deserves its note: the inventory of the silos, the continuous level gauges and the discharge records feed the rotation discipline of the bulk storage: the silo management of the guide plans the production and the dispatch so that the retention of the bulk never exceeds the storage window of the quality: the silo inventory is the exchange currency of the production planner and the dispatcher: the guide’s silo planning forms are the instruments of that exchange.

8. The Bag and the Bulk: The Packaging Defenses

The packaging of the cement is the last barrier before the client, and the guide’s packaging chapter covers the bag and the bulk options:

• The paper bags: the multi-wall paper bags with the moisture barrier plies: the standard of the dry markets: the storage life of the bagged cement in the dry warehouse extends to the months: the bag quality and the pallet wrapping decide the perimeter of the attack;
• The polyethylene and the laminated bags: the plastic-laminated and the woven bags of the humid markets: the moisture-tight barrier that protects the cement in the tropical warehouses and the sea transport: the guide’s comparison table of the bag types against the climates and the transport modes;
• The palletization and the stretch wrapping: the palletized bags wrapped in the stretch film form the moisture-tight unit: the unit shrink-wrapping of the export shipments: the barrier of the pallet is the barrier of the cargo: the wrapping practice of the export plants of the series;
• The bulk tankers and the pressure silos: the bulk transport by the tankers and the pressure silos of the terminals: the moisture-tight vessels with the venting filters: the bulk chain from the plant silo to the client silo protects the cement through the closed system: the airtightness of the chain is the discipline of the transport managers;
• The loading and the unloading: the dry cargo handling, the covered conveyors and the dust-controlled transfer: the water exposure of the open transfer is the accident that the packaging cannot undo: the handling discipline of the guide completes the packaging defenses;
• The packaging standards: the bag marking requirements of the standards: the class, the mass and the handling symbols on the bag: the paperwork of the packaging: the legal identity of the delivered product: the guide’s marking checklist supports the dispatch office;

The packaging chapter is the interface of the storage science and the transport logistics: the bag and the bulk systems carry the cement through the months and the thousands of kilometers: the guide’s packaging selection tables match the packaging to the climate and the journey: the export plants of the package plan the packaging with the same care as the production: the packaging is the last production operation of the plant, and the guide treats it as such.

9. The Sea Transport: The Voyage of the Cement

The sea transport is the harshest theater of the storage battle: the cement crosses the climates in the holds of the ships, and the guide’s maritime chapter is the manual of the ocean voyages:

• The hold preparation: the holds are cleaned, dried and checked for the leaks: the damp hold is the condemnation of the cargo before the loading: the inspection protocol of the guide precedes every loading of the bulk cement;
• The loading discipline: the dry cargo loaded with the covered conveyors and the trimmed stowage: the cargo temperature at the loading, the warm cement of the plant cooled before the ship: the guide’s loading checklist of the temperature, the moisture and the stowage plan;
• The ventilation of the voyage: the hold ventilation balances the cargo moisture and the outside air: the warm moist air of the tropics entering the cool hold condenses on the cargo: the ventilation strategy of the voyage follows the weather of the route: the guide’s ventilation tables assist the masters of the cement carriers;
• The condensation surfaces: the steel walls and the frames of the hold sweat in the temperature changes: the sweat drips on the cargo surfaces and the wetting begins: the moisture-protective measures, the hold coatings and the strategic arrangement of the cargo protect against the dripping: the details of the damage, documented in the guide’s maritime chapter;
• The voyage duration: the cement loses the quality with the time at sea: the typical voyage of the 2 to 4 weeks costs the cargo the small percent of its strength within the acceptable window, the long voyage of the months requires the special packaging and the discharge testing: the planning of the shipments against the voyage windows of the guide;
• The discharge and the terminal: the pneumatic discharge of the terminal, the silo storage at the destination and the final dispatch: the arrival inspection of the cargo compares the sampled quality with the loading certificate: the dispute evidence of the maritime claims: the guide’s claim protocol protects the shipper and the receiver;

The maritime chapter is the export volume of the storage science: the plants that serve the overseas markets protect their reputation with the voyage discipline: the loading inspections, the ventilation strategies and the arrival sampling: the guide’s maritime sections are the product of the long experience of the exporting plants, and the newcomer exporters study them before the first charter: the sea transport of the cement is the highest-stakes storage of all, and the guide is the manual of the journey.

10. The Quality Control of the Stored Cement: The Test Schedule

The storage discipline is verified by the laboratory, and the guide’s control chapter defines the testing of the stored cement:

• The release tests: the fresh production is released with the full certification: the fineness, the SO3, the setting and the strength: the certificates of the fresh product are the reference of the storage: the baseline of the later comparisons;
• The periodic re-tests: the stored stocks are re-tested on the schedule: the monthly window for the bulk silos and the quarterly for the bagged stock: the re-test battery of the guide: the fineness, the setting, the moisture and the ignition loss: the storage health of the numbers;
• The prehydration tests: the ignition loss and the heat-of-wetting measurements flag the silent damage before the strength tests of the weeks: the early-warning tests of the storage laboratory: the guide’s thresholds gate the release of the aged stock;
• The dispatch-grade tests: the aged cement is re-graded on the evidence: the 3-month-old cement with the 10% strength loss may still certify the lower class or the restricted applications: the re-grading table of the guide assigns the storage-graded applications;
• The blending option: the aged cement blended with the fresh production restores the certified quality: the blending ratios of the guide, computed from the strength tests of both stocks, re-quality the weathered material safely: the salvage of the storage by the blend: the value recovery of the warehouse;
• The documentation: the storage history of every stock, the test results and the final disposition: the archive of the warehouse: the disputes and the audits find the evidence in the archive: the storage documentation of the guide completes the quality loop;

The control chapter is the measurement arm of the storage war: the laboratory watches the stocks with the scheduled tests and the thresholds, and the warehouse acts on the numbers: the re-grading and the blending of the aged cement recover the value that the open-eyed storage would have written off: the quality control of the storage is the economics of the warehouse, and the guide’s decision tables convert the test results into the disposition actions.

11. The Storage Economics: The Cost of the Waiting

The storage of the cement is not free, and the guide’s economics chapter quantifies the full cost of the waiting:

• The capital cost: the silos, the warehouses and the handling equipment are the capital of the storage: the investment per stored ton, the depreciation and the interest: the storage is the most capital-intensive buffer of the plant, and the guide’s cost model makes the numbers visible;
• The quality cost: the weathering losses of the strength and the downgraded classes: the difference between the certified and the re-graded value: the hidden cost of the long retention: the quality cost of the example stock of section 4, computed in the currency of the plant;
• The handling cost: the re-screening, the re-grinding and the extra handling of the agglomerated cement: the energy and the labor of the salvage: the handling costs of the damaged stocks dwarf the routine handling: the guide’s salvage cost table supports the make-or-buy decisions;
• The logistics balancing: the storage levels against the dispatch demands: the seasonal production and the seasonal market: the plant that produces level and sells seasonal must store, and the storage design follows the seasonality of its market: the storage economics of the guide is the planning instrument of the balance;
• The inventory optimization: the optimal storage level of the plant: the low storage risks the delivery failures, the high storage pays the weathering bill: the inventory policy of the guide finds the optimum with the cost curves: the arithmetic of the warehouse manager;
• The decision support: the storage investments, the warehouse upgrades and the transport choices evaluated against the cost model: the guide’s Excel of the storage economics computes the payback of the silo blankets, the packaging upgrades and the rotation automation: the investment decisions of the storage, made with the numbers;

The economics chapter closes the technical loop of the storage volume: the storage is the necessary buffer of the cement business, and the discipline of the volume protects its value: the plant that measures the storage costs and follows the disciplines converts the warehouse from the necessary evil into the competitive advantage: the guide’s cost model is the bridge between the technical chapters and the boardroom, and the storage economics speak the language of the management.

12. The Client-Side Storage: The Advice to the Site

The storage story of the cement ends at the client’s site, and the guide’s final technical chapter prepares the plant’s service to the sites:

• The site requirements: the bagged cement on the pallets in the dry shed, the bulk in the moisture-tight silos: the minimum conditions of the site storage: the guide’s site-storage rules are the advice sheets of the sales engineers;
• The first-in-first-out of the site: the bags dated at the delivery and the old stock used first: the rotation discipline transferred to the site: the guide’s delivery advice includes the rotation instructions printed on the delivery documents;
• The maximum retention advice: the recommended storage windows of the products: the ordinary Portland cement within the 3 months, the rapid and the fine products shorter: the retention advice of the plant protects the client from the silent weathering: the honest product advice of the guide;
• The handling advice: the pallets not stacked on the wet ground, the damaged bags reported, and the opened bags used completely: the handling rules of the site: the small details of the big protection: the checklist of the delivery service;
• The complaint handling: the client’s storage complaints routed through the dispute protocol of the guide: the sample of the stored cement tested against the certificate: the site conditions photographed and documented: the fair division of the responsibility between the product and the storage: the evidence-based complaint resolution;
• The education service: the plant’s storage seminars for the clients: the ready-mix plants and the contractors trained in the storage rules: the service differentiates the supplier and reduces the complaints: the guide’s seminar materials complete the service package of the plant;

The client-side chapter completes the circle of the storage volume: the plant teaches the storage discipline to its market, and the market protects the certified quality of the deliveries: the complaints of the weathered cement decline as the sites adopt the rules, and the supplier that educated its clients harvests the trust: the storage guide of the 2002 series is the complete treaty of the cement and the air: from the silo of the plant to the shed of the site, the quality defended.

13. Frequently Asked Questions

How long can the cement be stored without the quality loss?

Under the proper conditions, the dry airtight storage and the rotation: the ordinary Portland cement holds its certified quality for 2 to 3 months with the negligible losses: the rapid and the very fine products shorten the window, the blended cements vary with their components: the humid and the open storage cuts the window to the weeks: the guide’s tables give the retention windows per product and per climate, and the re-testing schedule verifies the condition of the aged stock.

Can the lumped cement be recovered for the use?

Partially: the soft caking of the early stage is broken by the screening and the cement recovers most of its value: the hard lumps of the advanced hydration must be re-milled with the fresh production, and the re-milled blend re-qualifies with the testing: the rock-hard mass and the deep-prehydrated stock are downgraded to the lower-applications or rejected: the salvage grading of the guide assigns each damage level its economic route.

What is the difference between the pack set and the lumping?

The pack set is the consolidation of the cement in the silo that blocks the discharge, caused by the pressure and the moisture bonding at the bottom cone: the lumping is the particle bonding anywhere in the stored mass, in the silo, the warehouse or the bags: the pack set is the flow disease of the bulk system, the lumping is the material damage of the storage: the cures differ: the pack set by the discharge engineering, the lumping by the moisture and the retention control.

Does the cement lose its setting properties in the storage?

Yes: the prehydrated surfaces change the setting behavior: the typical weathered cement sets later, the initial setting extending by the tens of minutes and up to the hours in the severe cases, because the hydrate shells slow the fresh hydration: in the extreme cases the sulfate balance disturbed by the prehydration produces the irregular setting: the re-tests of the stored stock include the setting verification before the dispatch.

Is the sea transport safe for the bagged cement?

With the correct packaging and the stowage discipline: the laminated and the shrink-wrapped palletized bags protect the cargo for the typical voyages of the 2 to 6 weeks: the hold preparation, the ventilation strategy and the stowage planning of the guide protect the cargo during the journey: the unprepared holds and the careless stowage produce the documented disasters of the cement shipping: the discipline of the guide turns the sea transport into the routine safe operation of the export plants.

14. Conclusion

The agglomeration and the weathering of the cement: the battle of the stored product against the air: the moisture, the carbon dioxide and the time: the lumps and the pack sets, the prehydration and the strength losses: the guide of the 2002 series maps the mechanisms, the numbers and the defenses: the warehouse disciplines, the silo engineering, the packaging and the sea transport: the re-testing and the salvage of the aged stocks: the plant that masters the storage protects the certified quality of every ton until the mixer of the client: the last stage of the production, disciplined with the same rigor as the first.

The Complete Cement Technical Package includes the storage and weathering guide with the loss tables, the silo design data and the quality re-test schedules: the 931 files, the one-time $249.99, the instant download: the warehouse of the package: the stored quality of the plant, measured and protected: the shipments of the market, delivered fresh: the cement of the clients, as certified at the mill.

This file is part of the Complete Cement Technical Package (931 files) available from cementequipment.org. Respective rights holders; library copy for the licensed single user.