Method for improving crack resistance of recycled concrete

Method for improving crack resistance of recycled concrete

A method for improving the crack resistance of recycled concrete, which relates to the technical field of concrete. In this method, slag powder, anti-crack composite fiber and silica fume are added into recycled concrete to prepare anti-crack recycled concrete to improve the anti-crack performance....

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1. Verfasser: GUAN Qiaoyan
Format: Patent
Sprache:eng
Schlagworte:
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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creator GUAN Qiaoyan
description A method for improving the crack resistance of recycled concrete, which relates to the technical field of concrete. In this method, slag powder, anti-crack composite fiber and silica fume are added into recycled concrete to prepare anti-crack recycled concrete to improve the anti-crack performance. The anti-crack recycled concrete comprises the following components in parts by weight: 200-250 parts of cement, 150-200 parts of water, 550-650 parts of recycled coarse aggregate, 500-600 parts of recycled fine aggregate, 40-70 parts of slag powder, 80-100 parts of anti-crack composite fiber and 4-8 parts of silica fume. According to the invention, the slag powder, the anti-crack composite fiber and the silica fume are added into the recycled concrete to prepare the anti-crack recycled concrete, so as to improve the anti-crack performance of the recycled concrete, and the compressive strength is up to 59.6MPa and the splitting tensile strength is up to 5.3MPa.
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subjects ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
title Method for improving crack resistance of recycled concrete
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