Results 71 to 80 of about 1,825 (209)
Evaluating and comparing the effect of zeolite, micro-silica, and fly ash on the mechanical properties of recycled concrete made of 100% recycled aggregates [PDF]
Today, restrictions on access to natural aggregate resources in concrete production have become one of the problems in many countries. Concrete, as one of the most widely used human products, is a factor in consuming a large amount of aggregate.
Seyed Fathollah Sajedi, Hasan Jalilifar
doaj +1 more source
Rapid industrialization and urban growth have driven a rising demand for cement, yet ordinary Portland cement (OPC) production remains energy‐intensive and a major source of CO2 emissions. The partial substitution of OPC with supplementary cementitious materials (SCMs) offers a sustainable route to reduce environmental impact, production costs, and ...
Nancy Mweni Paul +6 more
wiley +1 more source
Currently, many researchers use industrial or agricultural by‐products (waste) as raw materials for the construction sector. These wastes are economical and help preserve the environment through good waste management. For this purpose, oil palm mesocarp fibers (OPMFs) are used at various volume concentrations (0%, 0.25%, 0.5%, and 1%) for the ...
Paul William Mejouyo Huisken +5 more
wiley +1 more source
The effect of natural pozzolan on delayed ettringite formation of the heat-cured mortars
International audienceDelayed Ettringite Formation (DEF) is an internal sulfate attack caused by early age heating to a temperature of over 70 degrees C.
Nguyen, van Huong +3 more
core +1 more source
Ultra high‐performance concrete (UHPC) is a material that brings revolutionary changes to modern building construction due to its outstanding mechanical, durability, and microstructural properties. This study investigates the impacts of these properties under three distinct curing regimes—steam curing, carbonation curing (CC), and autoclave curing (AC),
Shuvo Dip Datta +2 more
wiley +1 more source
Performance of Concrete Using Water Hyacinth Ash as a Partial Cement Substitute
Concrete is one of the most widely used construction materials, with cement as its primary component. However, cement production significantly contributes to CO2 emissions, posing environmental challenges. This study investigates the use of water hyacinth ash (WHA) as a sustainable partial replacement for cement in C‐30 grade concrete.
Temesgen Ejigu Alene +5 more
wiley +1 more source
Experimental Research on Natural Pozzolan as Cement Replacement
This paper presents the properties of motor and concrete with natural pozzolan as partial replacement of cement. In this research, natural pozzolan from Twin Taung, Sagaing Region and local cement (Crown) are used.
Aye, Dr. Nilar, Ko, Tin Ni Ni
core
The effect of pozzolan addition on the physical and mechanical properties of lime mortar
Hydrated lime, due to its life cycle (return to the natural form as a result of binding and hardening) shows a positive ecological aspect. The binder is often used in building materials based on plant components due to the high alkaline reaction and low ...
Brzyski Przemysław
doaj +1 more source
The properties of fly and bottom ashes produced by Morupule power stations in Botswana are analysed for their pozzolanicity. Furthermore, the influence of physical, chemical and microstructural properties of the ashes on the performance of compressive strength of fly ash–based blended cement and geopolymer mortar was evaluated.
Damilola O. Oyejobi +4 more
wiley +1 more source
Natural Pozzolan in Mount Popa Area
Mount Popa, in central Myanmar, is a large, steep-sided cmposite cone that rises a height of 1518m(4981'). It contains a 1.6 km wide, 850 m deep, horseshoe-shaped caldera that is widely breached to the NW.
Maw Maw Myint
core

