Abstract
The knowledge of sustainable development believes that natural resources should be treated limited, and waste must be managed rationally. This idea and the constant striving to reduce production costs make the use of waste materials potential substitutes for traditionally used raw materials. In cement concrete technology, there are many possibilities to use waste materials either as cement replacement or aggregate in concrete production. The basic aim of this research work is to study the impact of wooden ash (WA) as binding material in proportions 10%, 20%, and 30% by weight of cement on high strength ductile cementitious composite concrete. The fresh property was evaluated through the slump cone test, while the mechanical property was evaluated through compressive and split tensile strength test. Load deflection curve, ductility index, and maximum and minimum crack were also studied to find flexure cracking behaviors of reinforced cement concrete (RCC) beam. The durability of high-strength ductile concrete was studied through water absorption and acid attacks test. Pozzolanic activity of wooden ash was studied through XRD analysis.
Highlights
One of the major differences between high-strength concrete and normal-strength concrete is the compressive strength, which refers to the maximum resistance of a concrete sample to applied compressive load
Natural river sand was used as a fine aggregate (F.A) which had a fineness modulus of 2.7, and crushed stone with a maximum of 25 mm size was utilized as a coarse aggregate (C.A)
A 100 mm cubical sample was casted to evaluate the acid resistance of concrete which was cured of 4% sulfuric acid for a specified period
Summary
One of the major differences between high-strength concrete and normal-strength concrete is the compressive strength, which refers to the maximum resistance of a concrete sample to applied compressive load. Manufacturers evaluate the strength of the aggregates, the optimal size of the aggregates, the bond between the cement paste and aggregates, and the surface properties of the aggregate when giving more picking aggregates for high-strength concrete. Any of these characteristics may restrict the ultimate strength of high-strength c oncrete[3]. Environmental concerns and economic pressure are among the factors propelling industrialization’s growth today For this reason, several research projects are being carried out across the globe on the use of waste materials. Physical property Size Fineness Normal consistency Initial setting time Final setting time Specific surface Soundness Compressive strength
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