Accelerating, Retarding and Air-entraining Admixture
Accelerating Admixture An admixture used to speed up the initial set of concrete is called an accelerator. These admixtures are […]
Accelerating Admixture An admixture used to speed up the initial set of concrete is called an accelerator. These admixtures are […]
The Lucknow Road Plane (1981-2001):-
Earlier two road development plans led to two shortcomings:
(i) 1st two plans were not conceived to meet the needs of freight & passenger movement by road.
(ii) The plans were not part of the total transportation plan for the country.
The Bombay Road Plan (1961-81): By the end of the Nagpur road plan, the length of roads imagined under it
Water Reducing Admixture/ Plasticizers The requirement of right workability is the essence of good concrete. The easy method generally followed
Deleterious Materials In Aggregate The materials whose presence in aggregates may adversely affect the strength, workability & long-term performance of
Effect of Impurities in Water on Properties of Concrete The impurities in water used for the preparation of concrete may
Role of Water in Concrete Water is the most important & least expensive ingredient of concrete. It plays an important
Air pollutants can also be broadly classified into two general groups- Primary air pollutants and secondary air pollutants. A. Primary
The following 15 precautions should be taken during the preparation of good-quality concrete: 1. The cement and aggregates should be
1. The surface dressing over an existing worn-out flexible pavement is known as a) Prime Coatb) Seal coat ✅ c)