Corrosion Inhibitors in Concrete: Reinforced concrete is an established combination of steel and concrete that has been commonly used for over a century. Steel gives tensile strength to the set, whereas concrete acts as a physical barrier to protect the steel from corrosion. The alkalinity of the concrete, which ranges between pH 12 and 14, …
Best Material for Construction: Building materials such as stone, bricks, and concrete are utilized to construct structures. Each material possesses unique properties that distinguishes it from the others. In other words, because all these materials have distinct pros and cons, the best material choice should give a balanced set of properties ranging from strength to …
What is Shrinkage-Reducing Admixtures of Concrete? Shrinkage-reducing concrete admixtures encourage the concrete to expand at approximately the same rate as usual drying shrinkage contracts it. The net length shift of the hardened concrete is sufficiently minimal to avoid shrinkage cracks. Typically, admixture used for shrinkage-reducing is made of polyoxyalkylene alkyl ether or a similar composition. …
Natural Pozzolans in Concrete: Pozzolans can be combined with Portland cement to create blended cements that can be used in place of pure Portland cement in building materials such as concrete and bricks. Natural pozzolans are used in a variety of civil engineering applications, including structural concrete, precast and prestressed components. The article discusses the …
Repairing Concrete Damage: Concrete is an extremely durable building material that has a long duration of service when correctly proportioned and put on the job site. Currently, there are many concrete structures have a working life of only 20-30 years and are in need of repair. Unfortunately, in such cases, the concrete homes requires maintenance …
Concrete is a construction material composed of a variety of different materials (cement, water, fine and coarse aggregates). Compressive strength of concrete is high, while tensile strength is poor. The modulus of elasticity of concrete varies depending on the mixture design. Tensile stresses cause the concrete to break. Concrete’s elasticity remains stable at low stresses, …
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Prevent Concrete Curling: Curling of concrete is a flaw that occurs in concrete slab elements. Curling refers to upward or downward bending of the edges of a slab. Curling of concrete slabs is primarily caused by temperature differences between the slab’s upper and bottom surfaces or by variations in the slab’s moisture content. This post …
Setting Time of Concrete: The penetration resistance test is used to determine the initial and final setting times of concrete mixtures in the laboratory and on-site, as well as the effect of variables e.g. water content; form and quantity of cementitious material; and admixtures on the setting time of concrete. The setting time test is …
Understanding the Fire Resistance of Concrete: The capacity of concrete to resist fire or to provide protection against fire is referred to as its fire resistance. This refers to a concrete structural element’s ability to continue performing the required structural function or to contain fire, or to do both. The time period during which the …
Why BIM in Construction is Important?: With the complexity of construction projects, the potential for mistakes and miscommunication has increased significantly. The players must change their tendency toward digitalization by embracing computer-aided design and building information modelling (BIM) software to solve the problems. In its most basic form, BIM is an integrated method for visually …