Early Strength Study on Recycled Aggregate Concrete of Magnetized Water Steel Fiber

Abstract

Abstract: In order to study the effect of magnetized water and steel fiber on the early strength of recycled aggregate concrete, the effects of magnetized water with different magnetic field strength (0 mT, 200 mT, 260 mT, 320 mT) and steel fiber with different volume content (0%, 0.6%, 1.2%) on the early compressive strength and splitting tensile strength of recycled aggregate concrete cube were investigated and analyzed based on the C40 strength. Experimental results show that steel fiber significantly improves the early compressive strength and splitting tensile strength of recycled aggregate concrete, and magnetized water improves the compressive strength and splitting tensile strength of recycled aggregate concrete to varying degrees. The early compressive strength of recycled aggregate concrete increases obviously under 0.6% steel fiber content and 260 mT magnetic field strength.

Key words: recycled aggregate concrete, magnetized water, steel fiber, magnetic field intensity, early strength, microstructure

CLC Number:

TU528

DING Yahong, CHEN Bing, WU Jun, ZHANG Xianggang, XU Ping. Early Strength Study on Recycled Aggregate Concrete of Magnetized Water Steel Fiber[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(4): 1178-1185.

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