Hand Mixing Of Concrete
The process of mixing the various ingredients of concrete by manual labour, is called hand mixing of concrete. Hand mixing of...
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...
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...
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 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
Although, the slump cone test is not entirely satisfactory since it gives widely varying results and also...
Concrete Bleeding - Bleeding of Concrete
Concrete bleeding is the appearance of a watery scum (also called laitance) on the surface of a concrete after...
Sea Water for Mixing Concrete
It is advisable, as stated above, to use clean water fit for drinking purposes for making cement concrete. However, at...
