Roller-compacted concrete (RCC) is a type of concrete that can support a roller during its unhardened state while it is being compacted. The placement and compaction of RCC is a rapid construction process and therefore its success relies on the ...
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Stub Column: Purpose and Applications
A stub column is a type of column whose length is very small and does not connect to the footing directly. So, it does not have a footing or pedestal and relies on a beam or slab to transfer loads. ...
Repair Methods for Foundation Heave
Foundation heave is a serious structural issue that should be fixed as soon as it is diagnosed. The first step involves the identification of the cause of heaving. This enables the engineers in implementing the appropriate solutions. One of the ...
Concrete Dusting: Causes and Preventive Measures
Dusting, also known as chalking, is the formation of fine, loose powdery material on the surface of hardened concrete that can be swept away easily. Though dusting is observed inside as well as outside a building structure, it is more ...
How to Identify Concrete Distress in Visual Inspection Report?
Distress of concrete refers to the deterioration and decomposition of concrete caused by environmental conditions, autogenous internal influences, and exposure to operation services and testing. Concrete may suffer from several types of distresses, such as delamination, chalking, crack, and flaking, ...
How to Improve Pumpability of Lightweight Aggregate Concrete?
Pumping lightweight aggregate concrete is challenging due to the high water absorption of the aggregate in it which results in issues such as segregation, slump loss, inconsistent mix, etc. Therefore, engineers and contractors should consider appropriate strategies to overcome problems ...
How to Treat Discolored Concrete Surface?
Concrete discoloration is simply the change of the designated color of concrete. This could be due to the presence of calcium chloride in concrete, cement and additives, improper curing, environmental conditions, and faulty finishing works. Discoloration can be minimized by ...
What are the Signs of Foundation Heave?
Foundation heave is the upward movement of the expansive soil layer after it is saturated with water. Controlling the signs and symptoms of foundation heave at an early stage is important to prevent further enlargement of heave pressure and avoid ...