Hi-Bond cement (India) Pvt Ltd Ambawadi, Ahmedabad, Gujarat

In most construction projects godowns are constructed at site for storage of a few days requirement of cement. Even though such godowns are temporary in nature, they must conform to the following requirement. The walls must be plastered and made damp proof The roof must be given an appropriate water proofing treatment The floor must be raised by at least 80 cm above the ground level to prevent any inflow of water. The flooring may consist of a 15 cm thick layer of dry bricks laid in two courses over a layer of earth consolidated to a thickness of 15cm above the ground level. For further protection, cement bags should be stacked at least 10-20 cm clear above the floor by providing wooden battens and planking arrangement. For saving timber concrete may be used. If any windows are provided, these should be few and small and normally kept tightly closed to prevent entry of atmospheric moisture from outside. A newly constructed godown should not be used for storage of cement unless its interior is thoroughly dry.

Hi-bond cement has started producing psc cement confirming to bis 455-1989 under the brand name of special hi-bond cement. The product is in fact comparable to opc 53 grade in terms of strength, now a days to make structures more durable and hostile environment resistant. Special hi-bond cement has ggbfs (graund granulated blast furness slag) upto 40% of the cement, this slag has got more than 90% fine and uniform size of glass contains which gives protection to the structure from adverse impact of sulphate, chlorides and acid, in state of gujarat there are no of projects which use only slag cement, the special application of this product is in all projects such as, ports, canals, high rise buildings, mass concreting, etc.

General rcc work in all kind of construction. All construction in coastal area. Sub-soil construction and structures in hostile environments with high salinity, moisture and harmful chemical agents. Mass pcc works. Effluent and sewage treatment plants. Asbestos cement plants and precast plants. Culverts and drains. Waterproofing works. Grouts & mortar All types of plaster, masonry and file fixing works Underground concrete work like foundations, aqueducts Canals and flyovers. Mass concreting work like dams, canals, spillways

The Portland Pozzolana Cement is a kind of Blended Cement which is produced by either intergrinding of OPC clinker along with gypsum and pozzolanic materials in certain proportions or grinding the OPC clinker, gypsum and Pozzolanic materials separately and thoroughly blending them in certain proportions.

Pozzolana is a natural or artificial material containing silica in a reactive form. It may be further discussed as siliceous or siliceous and aluminous material which in itself possesses little, or no cementitious properties but will in finely divided form and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperature to form compounds possessing cementitious properties. It is essential that pozzolana be in a finely divided state as it is only then that silica can combine with calcium hydroxide (liberated by the hydrating Portland cement) in the presence of water to form stable calcium silicates which have cementitious properties. The pozzolanic materials commonly used are:

Hi-bond cement has started producing psc cement confirming to bis 455-1989 under the brand name of special hi-bond cement. The product is in fact comparable to opc 53 grade in terms of strength, now a days to make structures more durable and hostile environment resistant. Special hi-bond cement has ggbfs (graund granulated blast furness slag) upto 40% of the cement, this slag has got more than 90% fine and uniform size of glass contains which gives protection to the structure from adverse impact of sulphate, chlorides and acid, in state of gujarat there are no of projects which use only slag cement, the special application of this product is in all projects such as, ports, canals, high rise buildings, mass concreting, etc.

Pozzolana is a natural or artificial material containing silica in a reactive form. It may be further discussed as siliceous or siliceous and aluminous material which in itself possesses little, or no cementitious properties but will in finely divided form and in the presence of moisture, chemically react with calcium hydroxide at ordinary temperature to form compounds possessing cementitious properties. It is essential that pozzolana be in a finely divided state as it is only then that silica can combine with calcium hydroxide (liberated by the hydrating Portland cement) in the presence of water to form stable calcium silicates which have cementitious properties. The pozzolanic materials commonly used are:

53 Grade OPC is a higher strength cement to meet the needs of the consumer for higher strength concrete. As per BIS requirements the minimum 28 days compressive strength of 53 Grade OPC should not be less than 53 MPa. For certain specialised works, such as prestressed concrete and certain items of precast concrete requiring consistently high strength concrete, the use of 53 grade OPC is found very useful. 53 grade OPC produces higher-grade concrete at very economical cement content. In concrete mix design, for concrete M-20 and above grades a saving of 8 to 10 % of cement may be achieved with the use of 53 grade OPC.

53 Grade OPC is a higher strength cement to meet the needs of the consumer for higher strength concrete. As per BIS requirements the minimum 28 days compressive strength of 53 Grade OPC should not be less than 53 MPa. For certain specialised works, such as prestressed concrete and certain items of precast concrete requiring consistently high strength concrete, the use of 53 grade OPC is found very useful. 53 grade OPC produces higher-grade concrete at very economical cement content. In concrete mix design, for concrete M-20 and above grades a saving of 8 to 10 % of cement may be achieved with the use of 53 grade OPC.