What is water-cement ratio? The water-cement ratio (W/C ratio) is a fundamental parameter in the production of concrete, representing the ratio of water to cement in the mixture. It is defined as the weight of water divided by the weight of cement in the mixture, expressed as a decimal value...
Cement grade and type:-Cement is one of the oldest adhesives used in development. Whether it’s buildings, bridges, subways, pipelines or skyscrapers, high-quality cement is essential for world-class infrastructure. Is there a set parameter that distinguishes high-quality cement from low-quality cement? You may have heard phrases such as grade 33 or...
Fly ash concrete:- In view of global warming, efforts are being made to reduce carbon dioxide emissions into the environment. The cement industry is the main source of carbon dioxide emissions, as well as the main source of consuming large amounts of incoming resources in the cement production process. By...
Concrete is the most extensive material consisting of cement, sand, coarse aggregate and fine aggregate, and it hardens when mixed with water. During the formation of the concrete mix ratio, we can add whether the plasticizer is an accelerating/retarding plasticizers, which depends on the consideration of the design mix ratio....
Mix design is a process of determining the quality of the correct materials and their relative proportions to prepare the concrete for the desired properties such as workability, strength, set time, and durability. The quantity of concrete materials, such as cement, sand and aggregate, used to produce the required quantity...
The strength and durability of concrete depends on (a)Size of aggregate(Ans) (b)Grading of aggregate (c)Moisture content of aggregate (d)All of these 2. The breaking up of cohesion in a mass of concrete is called (a)Workability (b)Bleeding (c)Segregation(Ans) (d)Creep 3. The continuous strain, which the concrete undergoes due to application of...
Important Notes related to concrete technology: Segregation is the proper distribution of constituent materials of concrete i.e. the materials are showing the separation from each other(means binding property is not followed properly). Hence concrete having segregation property is weak in compressive strength, show poor quality concrete and reduction of desirable...
As a Site Engineer or supervisor it’s important for carrying out the project in a good manner. S.NO. STRUCTURAL MEMBERS DURATION 1. Slabs( when props left under) 3 days Removal of props to slabs of spanning upto 4.5m 7 days Removal of props to slabs of spanning over 4.5m 14...
