刘喜旭1,张小平2,严 涵2,马 琳2,柯伟席2
刘喜旭,张小平,严涵,等.多功能防腐阻锈剂对钢筋混凝土性能的影响[J].混凝土与水泥制品,2023(5):32-35.
LIU X X,ZHANG X P,YAN H.Effect of Multifunctional Sulfate-resistant and Corrosion-inhibition Admixture on Properties of Reinforced Concrete[J].China Concrete and Cement Product,2023(5):32-35.
多功能防腐阻锈剂对钢筋混凝土性能的影响
刘喜旭1,张小平2,严 涵2,马 琳2,柯伟席2
刘喜旭,张小平,严涵,等.多功能防腐阻锈剂对钢筋混凝土性能的影响[J].混凝土与水泥制品,2023(5):32-35.
LIU X X,ZHANG X P,YAN H.Effect of Multifunctional Sulfate-resistant and Corrosion-inhibition Admixture on Properties of Reinforced Concrete[J].China Concrete and Cement Product,2023(5):32-35.
摘 要:研制了一种防腐阻锈剂(MA),并研究了其对钢筋混凝土力学性能、耐久性能的影响。结果表明:基于对照组,掺MA的混凝土7 d和28 d抗压强度比分别为115%和108%,其氯离子扩散系数比为71.94%;通过钢筋耐盐水浸渍试验发现,MA具有良好的阻锈效果;掺MA的砂浆抗蚀系数为1.13,20 ℃和40 ℃水浴养护下砂浆的7 d限制膨胀率分别为0.028%和0.035%,28 d限制膨胀率分别为0.040%和0.039%,具有一定的补偿收缩作用。
Abstract: A multifunctional sulfate-resistant and corrosion-inhibition admixture(MA) was developed, and its effects on the mechanical properties and durability of reinforced concrete were studied. The results show that based on the control group, the 7 d and 28 d compressive strength ratios of concrete doped with MA are 115% and 108%, respectively. The chloride ion diffusion coefficient ratio of concrete is 71.94%. The salt water immersion test of steel bar shows that MA has good rust resistance effect. The corrosion resistance coefficient of mortar doped with MA is 1.13, and the 7 d limit expansion rates of mortar measured at 20 ℃ and 40 ℃ water conservation conditions are 0.028% and 0.035%, respectively, and the limited expansion rates of 28 d are 0.040% and 0.039%, respectively, and has a certain effect of compensating shrinkage.
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