Performance of Compound Cementitious Material Compounded with Clinker and Limestone Powder and Coal Ash

Tian Yong Huang; Yun Fen Hou

doi:10.4028/www.scientific.net/KEM.477.142

Paper Titles

Influence of Cement Particle Size Distribution on Strength of Hardened Cement Paste
p.118

A Calculation Method for Packing Density of Powder in Paste with Continuous Grain Size Distribution
p.125

Ultrasound In Situ Testing of early Hydration Process of Supplementary Cementitious Pastes
p.132

Influence of Mineralogical Origin of Limestone Powder on the Performance of Complex Binder Material
p.136

Performance of Compound Cementitious Material Compounded with Clinker and Limestone Powder and Coal Ash
p.142

Research on the Effect of Polycarboxylate Superlasticizers on Reheology Properties of Compound Cementitious System
p.151

Study on the Impact of Sasobit on Asphalt’s Temperature Susceptibility
p.157

Research on Set Retarder of High and Super High Strength Alkali -Activated Slag Cement and Concrete
p.164

Research on the Influence and its Mechanism of an Alkali-Free Hardening Accelerator on the Performance of Concrete
p.170

HomeKey Engineering MaterialsKey Engineering Materials Vol. 477Performance of Compound Cementitious Material...

Performance of Compound Cementitious Material Compounded with Clinker and Limestone Powder and Coal Ash

Abstract:

Limestone powder and coal ash are selected to prepare compound cementitious material with clinker. It is found that with the increasing of mixture (including limestone powder and coal ash), the water amount for standard consistency of compound cementitious material increases and the flexural strength and compressive strength at 3 and 28 days decrease. Increasing of limestone powder can reduces the water amount for standard consistency. The compressive strength, flexural strength and cleavage strength decrease with the increasing of mixture. If the mixture dosage is 60%, when the ratio of limestone powder and coal ash is 8:2, the compressive strength is the highest. If the mixture dosage increases to 70%, when the ratio of limestone powder and coal ash is 7:3, the compressive strength is the highest. If the mixture dosage is 80%, the all strengths are very low. The compressive strength increases significantly with time, the compressive strength is greater than 50MPa at 90 days. Although the mortar strength of compound cementitious material is far below for mortar strength required by cement standard, but the middle-low strength grade concrete can be prepared by low water-binder ratio.