矿渣粉和钢纤维掺量对混凝土力学及耐磨性能影响分析

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关键词：矿渣粉；钢纤维；混凝土；力学强度；耐磨性能；吸水率

中图分类号：TU528.01 文献标志码：A 文章编号：1005-8249（2026）02-0061-06

DOI：10.19860/j.cnki.issn1005-8249.2026.02.010

Analysis of the Effects of Blast Furnace Slag Powder and Steel Fiber Content on the Mechanical Properties and Abrasion Resistance of Concrete

HUA Siyu，JIA Jia

（Yunnan Aviation Industry Investment Group Co.，Ltd.， Kunming 650211，China）

Abstract： To reduce cement usage in concrete pavements，slag powder was employed asa high- proportion cement replacement. The study investigated the effects of different slag powder dosages （ 20% ， 30% ， 40% ）and steel fiber content （ 0.5% ， 1.0% ， 1.5% ）on concrete compressive strength，spliting tensile strength，flexural strength，abrasion resistance， andwaterabsorptionrate.Results indicate：-Blast fumace slag powder retards early hydrationreactions，reducing 28-day mechanical strength but significantly increasing 9O-day mechanical strength；Low steel fiber content （⩽1.0% ）provided insufcientreiforcement，evendegradingmechanical strengthandabrasionresistance，whiletheeinforcementefectwasmost pronounced at 1.5% content； Slag powder enhanced compressive strength and abrasion resistance but reduced flexural strength， with spliting tensile strength and water absorption initially improving then deteriorating；Thecombined use of 40% slag powder and 1.5% steel fibers increased compressive strength by 38.4% and reduced wear depth by 14.1% .The combination of 20% （20 slag powder and 1.5% steel fibers showed the most significant improvement in splitting tensile strength and flexural strength， increasing them by 46.2% and 27.9% ，respectively. This study provides a basis for preparing low-carbon，high- strength concrete pavements.

Key words： slag powder；steel fiber； concrete；mechanical strength； wear resistance;water absorption rate

材料科学

0 引言

混凝土路面凭借高强度、优良耐久性和低维护成本等优势，广泛应用于城市道路、机场道面等工程中[1]。（剩余8640字）