Rapid Hardening Cement

Rapid Hardening Cement Rapid Hardening Cement, as the name indicates these type of cement gains high strength in early days. But, the initial and final...

Cold Weather Concreting- Concreting in Cold Weather

Cold Weather Concreting During Cold weather concreting, the rate of hardening and setting of concrete is very much retarded when the temperature falls below 21...

Concrete Shrinkage – Shrinkage of Concrete

Concrete Shrinkage - Shrinkage of Concrete Concrete shrinks during setting and drying due to hydration of cement and produces shrinkage cracks. The drying shrinkage increases...

Slump Cone Test and its Advantages – Limitations

Slump Cone Test and its Advantages - Limitations Although, the slump cone test is not entirely satisfactory since it gives widely varying results and also...

Guniting or Shotcrete or Shot Concrete

Guniting or Shotcrete Guniting or Shotcrete: An intimate mixture of cement, sand (or fine aggregate) and water is forced or ejected through a cement-gun and...

Concrete Segregation – Segregation of Concrete

Concrete Segregation - Segregation of Concrete It is the separating of the coarse aggregate from the rest of the mix or the separating of the...

Concrete Bleeding – Bleeding of Concrete

Concrete Bleeding - Bleeding of Concrete Concrete bleeding is the appearance of a watery scum (also called laitance) on the surface of a concrete after...

Hot Weather Concreting – Concreting in Hot Weather

Hot Weather Concreting Hot Weather Concreting in tropical countries, such as India, air temperatures may rise up to 40-50 deg. C. during summer months. Such...

Concrete Blocks

Concrete Blocks (1) Raw materials used in Concrete Blocks : The materials required for the production of the concrete blocks are aggregates, cement and water....