Hairline cracks are commonly observed in freshly placed concrete and their occurrence is owed to the phenomenon of plastic shrinkage. As the name implies, these cracks are very small- about 0.003 i
Gypsum is a mineral and is hydrated calcium sulphate in chemical form. Gypsum plays a very important role in controlling the rate of hardening of the cement, so its is generally termed as retarding
Concrete without cement is possible with the use of fly ash as an alternate for cement. It matches both the chemical and physical properties of cement. Thus it has the ability to replace cement com
What is Green Concrete? Concrete which is made from concrete wastes that are eco-friendly are called as “Green concrete”. Green Concrete is a term given to a concrete that has had extra steps take
Graphene is a wonder material that holds the capacity to convert the oldest building materials into a greener and sustainable option. The incorporation of graphene in the concrete production proces
Asbestos is a naturally occurring thin crystalline long fiber which when used for the preparation of concrete improves the fresh and hardened properties of concrete such as compressive and fle
Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of ce
Blended cement can be defined as uniform mix of ordinary Portland cement (OPC) and blending materials such as silica fumes, fly ash, limestone and slag to enhance its properties for different uses.
Bonding new concrete to plastic and hardened concrete is an important task that is needed in many construction works. The formation of a good bond between new and existing concrete is essential whe
Performance of overlay concrete depends on the strength of the bond. There are numbers of factors that influence the bond strength of overlay concrete.
