This paper investigates the composition, properties and reactivity of a red mud waste generated in Saudi Arabia with view to find alternative materials replace construction binders high environmental impact. The phase transformation triggered by sintering RM up 1000°C is determined thermal X-Ray Diffraction analyses. Reactivity investigated chemical physical methods including Chapelle test, set...

Reusing ceramic waste as a pozzolanic admixture may offer environmental benefits it allows the reduction in consumption of natural resources and energy, CO2 emissions associated with Portland cement (PC) production, while valorising materials long biodegradation period. This paper assessed activity three different types: red clay bricks (RCB), tiles (TCW) sanitary-ware (CSW). After adapting the...

For optimum production of ultra-high performance concrete (UHPC), the material and microstructural properties of UHPC cured under various heat treatment (HT) conditions are studied. The effects of HT temperature and duration on the hydration reaction, microstructure, and mechanical properties of UHPC are investigated. Increasing HT temperature accelerates both cement hydration and pozzolanic re...

The need to formulate mortar compositions with adequate durability and compatibility is nowadays one of the major challenges in historical buildings repair. The incorporation of pozzolanic materials as addition or replacement of lime is viewed as a solution to these challenges regarding the increase in hardening time, mechanical strength, water resistance and durability. This paper includes par...

Water-quenched copper slag (WCS) modified with alumina (Al2O3) has been proven as a cement substitute; however, the effect of Al2O3 on structural properties WCS related to pozzolanic activity not well investigated. The and different amounts are characterized by X-ray diffraction, differential scanning calorimetry, Fourier-transform infrared spectroscopy, photoelectron uniaxial compressive stren...

Recently, as a supplement of cement, the utilization of pozzolanic materials in cement and concrete manufacturing has increased significantly. This study investigates the scope to use pozzolanic wastes (slag, palm oil fuel ash and rice husk ash) as an alkali activated binder (AAB) that can be used as an alternative to cement. To activate these materials, sodium hydroxide solution was used at 1....

In this study, waste ash was utilized as a pozzolanic material in blended Portland cement in order to reduce negative environmental effects and landfill volume required to dispose of waste ash. The influence of waste ash, namely palm oil fuel ash, rice husk ash and fly ash on compressive strength and sulfate resistance in mortar were studied and evaluated by some accelerated short-term techniqu...

The available literature identifies that the addition of mineral admixture as partial replacement of cement improves the microstructure of the concrete (i.e., porosity and pore size distribution) as well as increasing the mechanical characteristics such as drying shrinkage and creep, compressive strength, tensile strength, flexural strength, and modulus of elasticity; however, no single documen...