Investigation on Recycled Cement Based on Waste Concrete

Zong Shou Lin; Yan Chong

doi:10.4028/www.scientific.net/KEM.509.40

Paper Titles

Effect of Polycarboxylate Superplasticizer on Properties of Phosphogypsum-Based Cement
p.13

Effects of Gypsum on Cementitious Systems with Different Mineral Mixtures
p.20

Improvement on the Crack Resistance Property of Semi-Flexible Pavement by Cement-Emulsified Asphalt Mortar
p.26

Influence of Metakaolin on Strength and Microstructure of High-Strength Concrete
p.33

Investigation on Recycled Cement Based on Waste Concrete
p.40

Physico-Mechanical Properties of Rubberized Lightweight Aggregate Concrete for Tunnel Pavements
p.45

Preparation of Polyacrylamide Emulsion Modified Waterproof Desulfurization Building Gypsum
p.51

Relationship between Structure and Performance of Polycarboxylate Superplasticizer
p.57

Solid Phase Synthesis of S-Doped TiO₂ Nanomaterials with Visible Light Degradation Property
p.65

HomeKey Engineering MaterialsKey Engineering Materials Vol. 509Investigation on Recycled Cement Based on Waste...

Investigation on Recycled Cement Based on Waste Concrete

Abstract:

Adding part of granulated blast furnace slag(GBFS), steel salg(SS) , Desulfurization gypsum(DG), we can use Waste Cencrete（WC）as the main raw materials to directly produce uncalcined cement by grinding.With mix proportion 40%~50% of WC and curing in water, the 3d compressive strength of the cement can reach 10MPa.,the 28d compressive strength of the cement can reach 20~40MPa. XRD and SEM analysis show that, the hydration products of the cement are ettringite and C-S-H gel. Parts of WC involves in the hydration reaction, residual WC is wrapped by the hydration product as aggregate filler.

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Periodical:

Key Engineering Materials (Volume 509)

Pages:

40-44

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.509.40

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Online since:

April 2012

Authors:

Zong Shou Lin, Yan Chong

Keywords:

Construction Waste, Recycled Cement, Waste Concrete

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