نتایج جستجو برای: concrete workability

تعداد نتایج: 77113  

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

Journal: :Sustainability 2023

Plastic waste has increased significantly in recent years as a result of fast population growth and urbanization. Studies on the incorporation plastic aggregates substitution for natural concrete are needed to successfully reduce both adverse environmental impact depletion resources. The objective this research was investigate use partial coarse concrete. For purpose, seven mixes were produced ...

Journal: :Journal of Material Cycles and Waste Management 2022

Abstract This paper studies the use of wastepaper sludge ash (WPSA) for structural concrete in binary and ternary mixes with high-strength cement two industrial by-products, ground granulated blast-furnace slag (GGBS) pulverised fuel (PFA). The potential WPSA this type its combination other supplementary cementitious materials has not been established; thus, further research is needed prior to ...

Journal: :E3S web of conferences 2021

The properties of conventional concrete is improved by addition fiber in it. By these fibers ductility enhanced and brittleness reduced. In this study Polyvinyl alcohol (PVA) are used as a reinforcing material. high resistance nonreactive It will not oxidize when exposed to aggressive whether conditions having good affinity with cement. fibre size 6 mm added five proportions 0%, 0.125%, 0.25%, ...

Journal: :Civil Engineering Dimension 2021

This paper presents the benefits of PVA fibers in improving mechanical properties class F fly-ash-based geopolymer concrete. The activator used was 8M sodium hydroxide (NaOH) and silicate (Na2SiO3), with a mass ratio Na2SiO3 to NaOH varied from 1.5 2.5. Cylindrical specimens diameter 100 mm height 200 were prepared for strength tests. geopolymers fixed at 0.4%, 0.6%, 0.8% by total volume. Some ...

Journal: :Global Journal of Engineering and Technology Advances 2021

The aim of this project was to reduce cement content in concrete mixtures by changing the aggregate grading. For purpose, were made with aggregates having different shapes, textures, and However, workability mix depends on its paste volume, composition, type used. Concrete testing performed, properties including slump, compressive strength, tensile splitting test tested. effect shape evaluated ...

Journal: :Engineering research express 2023

Abstract Waste ceramic tile (CT) powders are used to improve the workability, mechanical properties, and durability of self-compacting concrete (SCC). The waste CT powder is prepared by mixing construction tiles, sanitary fittings, electrical insulators, with different weight percentages mixed into SCC. Experiments have been conducted evaluate mechanical, optimum compressive, flexural, tensile ...

2014
M. Ondova A. Estokova

Rapid industrialization results in increased use of natural resources bring along serious ecological and environmental imbalance due to the dumping of industrial wastes. Principles of sustainable construction have to be accepted with regard to the consumption of natural resources and the production of harmful emissions. Cement is a great importance raw material in the building industry and toda...

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