In concrete technology, cements with a high content of Portland clinker are increasingly being replaced by blended binders lower carbon footprint. Such include blastfurnace cements, which successfully used in concretes designed for large-scale elements, self-compacting concretes, as well the precast industry. Blast furnace exhibit strength gain relative to and heat hydration. Composites that in...

It is well established that Self-Compacting Concrete (SCC) contains large amounts of fines including mineral admixtures, such as fly ash and slag, in order to avoid segregation increase cohesion. The use these materials concrete reduces CO2 emissions contributes towards sustainable construction. To overcome the negative effect slag on strength development was ground three finenesses. Therefore,...

This study investigates the effectiveness of an agricultural by-product wheat straw ash (WSA) as internal curing agent in reducing autogenous shrinkage high-performance concrete (HPC). After incineration under different controlled time–temperature conditions, grinding and sieving were performed to obtain two grades fine WSA (F-WSA) superfine (SF-WSA). Subsequently, material characterization tes...

The purpose of this study was to evaluate the effects a shrinkage reducing agent (SRA) and Portland expanded cement (PEC) on fluidity, mechanical properties, performance ultrahigh-performance concrete (UHPC). results indicated that fluidity fresh UHPC mortar initially decreased then increases along as function SRA dosage. When dosage 1%, at its minimum. For dosages exceeding additional water-bi...

This review collates findings from more than 100 scientific publications regarding the performance of several waste-based porous materials (WASPORs) as water reservoirs for internal curing concrete. Results obtained by using recycled concrete aggregates, crushed ceramics, coal bottom ash, artificial different powder and fibres were included. The influence these WASPORs on consistence, hydration...