Cold weather is determined as a period when for greater than three consecutive days, the undermentioned conditions exist: Average daily air temperature is less than 5oC. Air temperature isn’t greater than 10oC for more than 1/2 of any 24-hour period. The average daily air temperature is the average of the…
Mass Concrete – Concrete Mix Parameter, Production, Transportation and Placement for Mass Concrete
Mass concrete or massive pours is defined as any volume of concrete with dimensions bigger enough to require measures to deal with the generation of heat from the hydration of cement & adjustments within the attendant quantity to reduce cracks. Concrete of large or massive structures has always posed a…
What is Hot Weather Concreting? Preventive Measures in Hot Weather Concreting
What is Hot Weather Concreting? Hot weather concreting is described as one or a combination of the conditions such as high ambient temperature, high concrete temperature, low relative humidity, and high wind speed that tend to impair the quality of freshly mixed or hardened concrete by accelerating the rate of…
Transparent Concrete – Its History, Properties, Applications, Advantages, and Disadvantages
What is Transparent Concrete? Transparent concrete is hardened concrete that allows light to pass through it. It is also known as light-transmitting concrete or translucent concrete. Commonly, transparent concrete is similar to ordinary concrete because the strength of both concrete is similar. But the major advantage is the transparent concrete…
Why Does Concrete Needs Repair? Repair Components and Right Materials
Concrete repair is the procedure of fixing a hardened concrete surface that over time has lost the ability to hold the binding concrete materials together because of environmental exposure or damage. Concrete repair is appropriate for cracks, physical impacts, surface scaling, or chipped-out surfaces. Why Does Concrete Needs Repairs? There…
What is Engineering Grout? Its Types, Properties, Applications
Engineering grout is a material that has properties on non-shrink, free flow, high early strength for bolt pocket, and base plate of machines to ensure firm and vibration-free equipment. Engineering grout is composite material generally consisting of water, cement, and sand. Engineering grout is normally utilized for filling voids under…
Mineral Admixtures – Its Types, Advantages and Their Effects on Concrete
Mineral admixtures are mostly derived from other substances and not chemically manufactured. Mineral admixtures make concrete mixtures more cohesive, economical, reduce permeability, increase strength, and influence other properties of concrete. Mineral admixture impacts the nature of the hardened concrete through hydraulic activity or pozzolanic activity. Pozzolanas are cementitious materials and…
What is Durability of Concrete? Factor Affecting Durability of Concrete
The durability of concrete is defined by its capability or the ability to resist weathering action, chemical attack, abrasion, or any other deterioration process and retain its original form, quality & serviceability when exposed to its environment. Different concretes require different degrees of durability on the exposure environment and properties…
Placement of Concrete – Recommendations for Concrete Placement
The concrete placing method will depend on the rate of concreting planned, type of structure, the quantity of concrete required to be poured in one go, the equipment or manpower available for placing and compacting concrete, formwork design, the time required for the initial setting of concrete, and even the…
Transportation of Concrete and Checklist for Concrete Transportation
Transportation of concrete is a significant activity in the production of concrete. The time taken in transit mixer should be a design parameter as it depends on the initial setting time of concrete as well as the requirement of workability at the placing point. The method of transportation adopted at…
