What Is Carbonation in Concrete? Carbonation is the process in which carbon dioxide in the air reacts with the calcium hydroxide in concrete to create calcium carbonate, which can lower the pH of the concrete to around 9. This can cause the protective oxide layer around reinforcing steel to break down, potentially leading to corrosion. […]
What Is Green Infrastructure? Green infrastructure or blue-green infrastructure refers to the use of natural features and processes to provide a range of benefits in urban areas, including stormwater management, climate adaptation, heat stress reduction, increased biodiversity, food production, improved air quality, sustainable energy production, clean water, and healthy soils. It can also provide recreational […]
What Is Pervious Concrete in Construction? Pervious concrete is a porous type of concrete that is used in flatwork applications and is designed to allow water to pass through it, reducing runoff and allowing for groundwater recharge. It is made by using large aggregates with minimal fine aggregates, and the concrete paste coats the aggregates, […]
What Is A Concrete Placing Boom? A concrete placing boom is a mobile, truck-mounted machine with a powered, flexible arm (called a knuckle boom) that can rotate and lift to place concrete through a pipeline attached to or incorporated into the arm. It is used to pump concrete to the desired location during construction. Placing […]
What is Formwork in Construction? Formwork refers to temporary or permanent molds or structures used to hold and shape wet concrete or similar materials as it cures. In concrete construction, formwork is used to create the shape and form of the structure. It can be precast, meaning it is made offsite and brought to the […]
What Is The Difference Between Creep And Shrinkage? What is Creeping in Concrete? Creep in concrete refers to the deformation of concrete under a sustained load over time. It is a phenomenon that occurs in all concrete structures, although the amount of creep can vary depending on the type of concrete and the conditions to […]
What Are Latent and Patent Defects in Construction Projects? Construction defects can cause significant issues for homeowners and construction professionals alike. Two types of defects that are important to understand are latent defects and patent defects. Latent defects are hidden and may not be discovered for years, while patent defects are obvious and can be […]
What Is Pre Tensioning Concrete? Pre-tensioning concrete involves using tendons or cables as reinforcement in concrete construction. These tendons are stretched and anchored within formwork before the concrete is poured. After the concrete has hardened and reached a sufficient strength, the tendons are released, causing them to contract and transfer their stored energy to the […]
What Are Shear Keys In Construction? Shear keys, or shear reinforcement, are elements of reinforced masonry construction which are specifically designed to resist lateral shear forces. They are essentially slotted openings or notches cut into the concrete, which are filled with grout or mortar to form a continuous bond between the concrete and the reinforcement […]
What Is Precast Concrete Column? Precast concrete columns are a type of reinforced concrete column that is created by casting and curing the concrete on the ground before it is lifted into place. These columns are able to withstand shear, axial force, and bending moments, similar to in-situ columns. However, it is important to pay […]