Explanation: Concrete technology covers all elements of concrete, from mix design to batching, mixing, transporting, putting, consolidating, finishing, and curing, and gives guidance on all aspects of concrete from mix design to batching, mixing, transporting, placing, consolidating, finishing, and curing.

Explanation: Depending on the kind of construction, there are typically twenty-four distinct types of concrete used in the building and construction business.

Explanation: In concrete technology, HRM is abbreviated as Human Resource Management.

Explanation: The binding material binds fine and coarse aggregate. Fine aggregates fill the space in the coarse aggregate. Admixtures affect the setting time of cement.

Explanation: To identify and comprehend ideas connected to concrete technology, which includes the various types and properties of concrete as well as various adhesive materials and their critical application in the construction of safe and cost-effective structures.

Explanation: Compressive strengths of 3000 psi requires 440-560 pounds per cubic yard, while compressive strengths of 2500 psi requires 400-510 pounds per cubic yard.

Explanation: This test is used to assess how much water is needed to make a standard or typical consistency cement paste. This test also helps to determine soundness, compressive strengths and setting time of the cement.

Explanation: As water comes into contact with cement particles, hydration reactions immediately starts at the surface of the particles. It is an exothermic reaction i.e., heat is released during the process. The resultant product of this reaction is hardened cement.

Explanation: Sulphate resistance is excellent in cement with composition. This type of cement is utilized in the construction of foundations on soils with high sulphate levels in the subsoil.

Explanation: Colored cement is made by mixing 5-10% mineral pigments into Portland cement during the grinding process. The color added to the cement can fade but the cement retains its workability and durability.

Explanation: The water–cement ratio is the weight of water in a concrete mix divided by the weight of cement. The strength of concrete is proportional to the Cement water ratio and inversely proportional to the w/c ratio.

Explanation: 3 equal layers by volume are placed. Fill the mold to a height of 12 inches in the shape of a frustum of a cone with a bottom diameter of 8 inches and a top diameter of 4 inches. Then, instead of filling it in three equal levels by height, fill it in three equal layers by volume.

Explanation: Aggregates are split into two groups, accounting for 60-75 percent of the total volume of concrete. Gravels, crushed stone, Natural gravel, and sand, etc. are the aggregates of the concrete.

Explanation: Normal weight aggregates include crushed stone, gravel, and regular sand. They’re widely utilized in the production of regular and asphalt concrete, and highway sub-base.

Explanation: The coefficient of thermal expansion refers to either expansion or contraction of a material with temperature. The coefficient of thermal expansion rises in tandem with aggregates’ coefficient of thermal expansion, and vice versa.