The use of supplementary cementing materials is gradually increasing due to technical, economical, and environmental benefits. Supplementary cementitious materials (SCM) are most commonly used in producing ready mixed concrete (RMC). A quantitative understanding of the efficiency of SCMs as a mineral admixture in concrete is essential for its effective utilisation. The performance and effective...

Geopolymer results from the reaction of a source material that is rich in silica and alumina with alkaline liquid. It is essentially cement free concrete. This material is being studied extensively and shows promise as a greener substitute for ordinary Portland cement concrete in some applications. Research is shifting from the chemistry domain to engineering applications and commercial product...

Abstract Study was related to the influence of concrete properties by using different percentages metakaolin and fixed percent incineration bottom ash partially replace cement. Cement is a well-known building material used for construction in world. Moreover, (MK) (IBA) this research would give significance our environment as it can reduce usage cement concrete. By ash, could land filling space...

An investigation was carried out to establish the physical, mechanical and chemical characteristics of a non-standard (unprocessed) pulverised fuel ash (PFA) and waste tyres from a former landfill site at the Power Station Hill near Church Village, South Wales, United Kingdom. Investigations are on-going to establish the suitability of the fly ash and/or tyres in road construction (embankment a...

This study is aimed at the optimization of calcined termite mound material incorporated in mortar and concrete using Response Surfaces Methodology (RSM). The substituting cement varied from 5 to 15% interval 5% concrete. Sikament NN was added 1.0 3.0 1.0. Test conducted on were: consistency setting times. For concrete, specimens were cast tested failure for all mixes curing periods 3, 7, 28, 60...

This paper presents the experimental results of an on-going research project on geopolymer lightweight concrete using two locally available waste materials--low calcium fly ash (FA) and oil palm shell (OPS)--as the binder and lightweight coarse aggregate, respectively. OPS was pretreated with three different alkaline solutions of sodium hydroxide (NaOH), potassium hydroxide, and sodium silicate...

Abstract Geopolymer concrete (GPC) reduces the environmental impacts of conventional Portland cement concrete, therefore, this research aims to investigate compressive characteristics GPC by utilizing readily available industrial waste i.e., coal based Flyash in Khyber Pakhtunkhwa province Pakistan. For preparation GPC, Na 2 SiO 3 was used as an activator. After specimens, their were investigat...