桥梁混凝土配比优化及温控养护技术研究

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中图分类号：U445.57 文献标志码：A 文章编号：1005-8249（2026）02-0067-04

DOI：10.19860/j.cnki.issn1005- 8249.2026.02.011

Research on Optimization of Concrete Mix Proportion and Temperature Control Maintenance Technology for Bridges

YANG Enzong， LI Yuefei

（Yunling Construction Co.，Ltd.， of Ycic Group，Kunming 65OOOO，China）

Abstract：Inordertoimprovethecompressivestrength ofconcreteinurban bridgeengineringandoptimizethetemperature controlcuring process tomeetthe material performanceandconstructionqualityrequirementsofbridgeconstruction，thisstudy focuses on the optimization of concrete mix proportion and temperature control curing technology for a certain 800m cast-in - placeconcretebridge.Optimizeanddeterminetheconcretemixratiobyanalyzing theinfluenceof mixparametersonthe compresivestrengthofconcretethrough experiments.Theconstructioniscompletedundertheconditionofconstanttemperature of 60 C for72 hours，combined with steam curing technology and layered pouring and precise vibration technology.Real time monitoringtechnologywasusedtocomparetheperformanceofconcreteunderdiferentflyashdosagesand temperaturecontrolled curingparameters．Theresultsshowedthat throughratiooptimizationand temperaturecontrol curing technology，the compressive strength of bridge concrete exceeded 400MPa at 90 days of age， with a range of only 3.06MPa at each monitoring point.After 12O days，the strength growth tended to stabilize，with an increase of ⩽0.5% ；The displacement is controlled within 3.5mm andthereareno structural cracks，which verifies that this technologycan efectively improve the uniformity of concretestrengthdevelopmentandvolumestability，meting highstandardconstructionrequirements，andprovidereliable technical support for the high -quality construction of urban bridge engineering.

Key words：bridge engineering；concrete mix proportion；temperature-controlled curing；compresivestrength；performance stability

0 引言

混凝土的抗压强度直接影响着桥梁的承载能力、耐久性能和使用寿命[1-2]。（剩余4638字）