刘 立1,丁小富2,李长成1,郑永辉1,贾福杰1,赵顺增1,吴 勇1
摘 要:以40 mm×40 mm×160 mm试件替代10 mm×10 mm×60 mm试件(A法),建立了混凝土抗侵蚀防腐剂抗蚀系数试验方法(B法)。保持养护及腐蚀制度不变,按灰砂比1∶6,流动度(250±5)mm确定了水胶比,使侵蚀溶液浓度提高至15%,分别测试20 ℃侵蚀溶液中和水中90 d砂浆试件的抗压强度,以抗压强度比确定90 d抗蚀系数。结果表明:B法的90 d抗蚀系数与原A法的28 d抗蚀系数结果相吻合,B法是可行的。
Abstract: The corrosion resistance coefficient test method B for environmental corrosion-resistance admixture was established. The traditional 10 mm×10 mm×60 mm specimen (test method A) was replaced by 40 mm×40 mm×160 mm mortar specimen, while the curing and corrosion system remained unchanged, water-cement ratio was determined according to the mortar fluidity of (250±5)mm and the cement-sand ratio was 1∶6. The concentration of corrosion solution was increased to 15%. The compressive strength of mortar in corrosion solution and mortar in water at 20 ℃ for 90 d were tested, respectively. And the corrosion resistance coefficient at 90 d was determined by the compressive strength ratio. The results show that the corrosion resistance coefficient at 90 d of method B is consistent with the corrosion resistance coefficient at 28 d of the original method A. Therefore, test method B is feasible.
刘立,丁小富,李长成,等.混凝土抗侵蚀防腐剂抗蚀系数试验方法研究[J].混凝土与水泥制品,2020(10):17-20.
LIU L,DING X F,LI C C,et al.Study on the Corrosion Resistance Coefficient Test Method for Environmental Corrosion-resistance Admixture[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):17-20.
混凝土抗侵蚀防腐剂抗蚀系数试验方法研究
刘 立1,丁小富2,李长成1,郑永辉1,贾福杰1,赵顺增1,吴 勇1
摘 要:以40 mm×40 mm×160 mm试件替代10 mm×10 mm×60 mm试件(A法),建立了混凝土抗侵蚀防腐剂抗蚀系数试验方法(B法)。保持养护及腐蚀制度不变,按灰砂比1∶6,流动度(250±5)mm确定了水胶比,使侵蚀溶液浓度提高至15%,分别测试20 ℃侵蚀溶液中和水中90 d砂浆试件的抗压强度,以抗压强度比确定90 d抗蚀系数。结果表明:B法的90 d抗蚀系数与原A法的28 d抗蚀系数结果相吻合,B法是可行的。
Abstract: The corrosion resistance coefficient test method B for environmental corrosion-resistance admixture was established. The traditional 10 mm×10 mm×60 mm specimen (test method A) was replaced by 40 mm×40 mm×160 mm mortar specimen, while the curing and corrosion system remained unchanged, water-cement ratio was determined according to the mortar fluidity of (250±5)mm and the cement-sand ratio was 1∶6. The concentration of corrosion solution was increased to 15%. The compressive strength of mortar in corrosion solution and mortar in water at 20 ℃ for 90 d were tested, respectively. And the corrosion resistance coefficient at 90 d was determined by the compressive strength ratio. The results show that the corrosion resistance coefficient at 90 d of method B is consistent with the corrosion resistance coefficient at 28 d of the original method A. Therefore, test method B is feasible.
刘立,丁小富,李长成,等.混凝土抗侵蚀防腐剂抗蚀系数试验方法研究[J].混凝土与水泥制品,2020(10):17-20.
LIU L,DING X F,LI C C,et al.Study on the Corrosion Resistance Coefficient Test Method for Environmental Corrosion-resistance Admixture[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):17-20.
摘 要:以40 mm×40 mm×160 mm试件替代10 mm×10 mm×60 mm试件(A法),建立了混凝土抗侵蚀防腐剂抗蚀系数试验方法(B法)。保持养护及腐蚀制度不变,按灰砂比1∶6,流动度(250±5)mm确定了水胶比,使侵蚀溶液浓度提高至15%,分别测试20 ℃侵蚀溶液中和水中90 d砂浆试件的抗压强度,以抗压强度比确定90 d抗蚀系数。结果表明:B法的90 d抗蚀系数与原A法的28 d抗蚀系数结果相吻合,B法是可行的。
Abstract: The corrosion resistance coefficient test method B for environmental corrosion-resistance admixture was established. The traditional 10 mm×10 mm×60 mm specimen (test method A) was replaced by 40 mm×40 mm×160 mm mortar specimen, while the curing and corrosion system remained unchanged, water-cement ratio was determined according to the mortar fluidity of (250±5)mm and the cement-sand ratio was 1∶6. The concentration of corrosion solution was increased to 15%. The compressive strength of mortar in corrosion solution and mortar in water at 20 ℃ for 90 d were tested, respectively. And the corrosion resistance coefficient at 90 d was determined by the compressive strength ratio. The results show that the corrosion resistance coefficient at 90 d of method B is consistent with the corrosion resistance coefficient at 28 d of the original method A. Therefore, test method B is feasible.
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