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The selected LWA was used as coarse aggregate for producing lightweight concrete (LWC) with high workability.
The term high-performance concrete (HPC) is typically used to describe concrete mixes with high workability, strength, and/or durability.
The market for medium strength (28 35 MPa) concrete with high workability is recently increasing due to its qualitative and cost-saving advantages.
These findings show promising field applications of the stabilizer and also provide a valuable reference for the preparation and construction quality control of CAM with high workability.
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High workability together with a good resistance to segregation is needed for cement based composites, specifically fresh self-compacting mortars (SCM); in this prospect, the amount of coarse materials has to be reduced and replaced by fine material.
Therefore, PET replaced concrete with low w/c ratio and high workability can be used for structural concrete member.
Due to the high workability requirement, guidelines associated with the design of SCC recommended the use of chemical admixtures such as high-range water reducer (HRWR) and viscosity modifying admixtures (VMA) with minimum water content varying between 0.37 and 0.4 (EFNARC 2005).
Lightweight self-consolidating concrete (LWSCC) is expected to provide high workability without segregation and high durability with reduced weight.
A new kind of LWC was produced at the Department of Structural Engineering of Ain Shams University in 2005, which combines the advantages of normal density concrete, cellular concrete and high workability concrete through partially replacing the normal weight aggregates with polystyrene foam particles.
The HVFA cement based high performance concretes have high workability, acceptable strengths, and superior durability.
Cement mortars (1 2. 1:2.5 and 1 3) incorporating various percentages of slag and superplasticizer were designed to have high workability (136±3% flow).
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