Abstract This paper deals with the use of calcinated clay and micronized limestone as supplementary cementitious materials (SMCs) for preparation blended Portland cement CEM II/B-M (Q-LL). Clay used in this study was at 700°C pozzolanic activity after calcination assessed using accelerated R3 test modified Chapelle test. The influence addition on mechanical properties hydration process investig...

Recycled concrete aggregates and mixed recycled aggregates are specified as types of aggregates with lower densities, higher water absorption capacities, and lower mechanical strength than natural aggregates. In this paper, the mechanical behaviour and microstructural properties of natural aggregates, recycled concrete aggregates and mixed recycled aggregates were compared. Different specimens ...

This paper presents a study of the potential use iron mining tailings as artificial pozzolan (metakaolin) after their submission to thermal treatment via calcination in flash furnace. The research consists characterization before and calcination, chemical, mineralogical, thermogravimetric, mechanical strength analyses were conducted. results compared with those for commonly used pozzolans, meta...

The present study consists in verifying the effect of partial replacement alluvial sand by glass aggregates on performance mortar. For that, a series mechanical tests (compression and bending) an examination pozzolanic activity were carried out samples prismatic shapes (40x40x160 mm3) three types mortar: (i) control mortar (cement + mixing water); (ii) type 1 (AV10) “90% 10% aggregate” (iii) 2 ...

Abstract With the potential for a decline in fly ash (FA) production over time, due to phasing down of coal fired power plants, alternative supplementary cementitious materials need be identified. The efficiency pulverised glass powder (PGP) was studied its reactivity and capacity inhibiting alkali-silica reaction (ASR) that results from utilisation recycled as fine aggregate (sand) replacement...