Cement bags shall be stored/stacked off the floor on wooden planks in such a way as to be clear above the floor by 150 mm to 200 mm and a space of 450 mm minimum around between the bags and external walls. In the stacks, cement bags shall be kept close together to reduce circulation of air as much as possible. Owing to pressure on the bottom layer of bags ‘warehouse pack’ is developed in these bags. This can be removed easily by rolling the bags when the cement is taken for use.
The height of the stack shall be not more than 15 bags to prevent the possibility of lumping up under pressure.The width of the stack shall not be more than four bags length or 3 m. In stacks more than 8 bags high, the cement bags shall be arranged alternately lengthwise and crosswise so as to tie the stacks together and minimize the danger of toppling over. Cement bags shall be stacked in a manner to facilitate their removal and use in the order in which they are received.
During themonsoon or when it is expected to be stored for a long period, the stack shall be completely enclosed by a waterproofing membrane, such as, polyethylene sheet. Care shall be taken to see that the membrane is not damaged any time during use.Different types of cements shall be stored separately.Cement stored in drums may be arranged vertically with closures on top. After partial use of cement in drums when it occurs, the closure should be firmly fastened to prevent ingress of moisture.A maximum of 3 drums can be stacked in height.
Bricks shall not be dumped at site.They should be stacked in regular tiers as and when they are unloaded to minimize breakage and defacement of bricks.In case of bricks made from clay containing lime kankar the bricks in stack should be thoroughly soaked in water to prevent lime bursting.Bricks shall be placed close to the site of work so that least effort is required to unload and transport the bricks again by loading on pallets or barrows. Building bricks shall -be loaded a pair at a lime unless palletized. Unloading of building bricks or handling in any other way likely to damage the corners or edges or other parts of bricks shall not be permitted.
Bricks shall be stacked on firm ground.
Aggregate shall be stored at site on a hard and dry level patch of ground.If such a surface is not available,a platform of planks or of corrugated iron sheets,or a floor of dry bricks, or a thin layer of lean concrete shall be made so as to prevent the admixture of clay, dust, vegetable and other foreign matter.Stacks of fine and coarse aggregate-shall be kept in separate stack piles,sufficiently removed from each other to prevent the materials at the edge of the piles getting intermixed. On a large job it is desirable to construct dividing walls to give each type of aggregate its own compartment. Fine aggregate shall be stacked in place where loss due to the effect of wind is minimum.Unless specified otherwise or.necessitated by site conditions, stacking of aggregate should be carried out in regular sizes.
The suggested sizes of stacks are asfollows:
Separate areas shall be earmarked for storing each classiﬁcation(type and grade) of steel. It is desirable that the ends of bars and sections of each class be painted in distinct separate atmospheric agencies
In case of long storage, reinforcement bars shall be stacked above ground level by at least 150 mm. A coat of cement wash shall be given, for such long storage,to prevent scaling and rusting.Other structural steel sections of different classification (types and grades), sizes and lengths shall be stored separately. It shall be stored above ground level by at least 150 mm upon platforms, skids or other suitable supports to avoid distortion of sections.
For long storage, suitable protective coating of primer shall be given to prevent scaling and rusting. For/storage in coastal area, similar protective treatment shall be given for ‘reinforcement bars and structural steel sections.
Roofing sheets shall be stored in such a way as not to damage them in any way.Asbestos cement sheets shall be stacked to a height of not more than one metre on a firm and level ground with timber or other packing beneath them. If stacked in exposed position, they shall be protected from damage by wind. Asbestos cement sheets of the same variety and size shall be stacked together.Damaged sheets shall not be stacked with sound materials.All damaged sheets shall be salvaged as early as possible.
All intrusion of paints, thinners