混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2015年
5期
7-10
,共4页
混凝土%细骨料%粒化高炉矿渣%冻融性能%自愈能力
混凝土%細骨料%粒化高爐礦渣%凍融性能%自愈能力
혼응토%세골료%립화고로광사%동융성능%자유능력
Concrete%Fine aggregate%Granulated blast furnace slag%Freezing and thawing%Self-healing
探讨了粒化高炉矿渣代砂混凝土的冻融性能。通过冻融循环试验，用质量损失率及抗压强度来表征粒化高炉矿渣代砂混凝土的抗冻性，探索粒化高炉矿渣代替天然砂作为混凝土细骨料的可行性。试验结果表明，粒化高炉矿渣混凝土的冻融特性与普通河砂混凝土相似；在相同冻融循环作用下，粒化高炉矿渣混凝土抗压强度下降幅度较普通混凝土低，即粒化高炉矿渣混凝土的抗冻性优于普通混凝土。同时，对冻融循环作用后混凝土自愈性能做了试验，结果表明经过适当养护，粒化高炉矿渣混凝土与普通混凝土的抗压强度均能提高，具有一定的“自愈”能力。
探討瞭粒化高爐礦渣代砂混凝土的凍融性能。通過凍融循環試驗，用質量損失率及抗壓彊度來錶徵粒化高爐礦渣代砂混凝土的抗凍性，探索粒化高爐礦渣代替天然砂作為混凝土細骨料的可行性。試驗結果錶明，粒化高爐礦渣混凝土的凍融特性與普通河砂混凝土相似；在相同凍融循環作用下，粒化高爐礦渣混凝土抗壓彊度下降幅度較普通混凝土低，即粒化高爐礦渣混凝土的抗凍性優于普通混凝土。同時，對凍融循環作用後混凝土自愈性能做瞭試驗，結果錶明經過適噹養護，粒化高爐礦渣混凝土與普通混凝土的抗壓彊度均能提高，具有一定的“自愈”能力。
탐토료립화고로광사대사혼응토적동융성능。통과동융순배시험，용질량손실솔급항압강도래표정립화고로광사대사혼응토적항동성，탐색립화고로광사대체천연사작위혼응토세골료적가행성。시험결과표명，립화고로광사혼응토적동융특성여보통하사혼응토상사；재상동동융순배작용하，립화고로광사혼응토항압강도하강폭도교보통혼응토저，즉립화고로광사혼응토적항동성우우보통혼응토。동시，대동융순배작용후혼응토자유성능주료시험，결과표명경과괄당양호，립화고로광사혼응토여보통혼응토적항압강도균능제고，구유일정적“자유”능력。
The frost resistance performance of granulated blast furnace slag fine aggregate concrete is discussed. By the freeze-thaw cycle experiment, the frost resistance performance of the granulated blast furnace slag concrete is evaluat-ed by the quality loss rate and the compressive strength, and it is feasible that the granulated blast furnace slag replacing natural sand as fine aggregate in concrete is explored. By the test result, the frost resistance performance of granulated blast furnace slag concrete is similar to ordinary concrete. In the same freezing and thawing cycle condition, the compres-sive strength of granulated blast furnace slag concrete reduces more slowly than the ordinary concrete, in another word, the frost resistance performance of granulated blast furnace slag concrete is better than ordinary concrete. Moreover, the self-healing properties of granulated blast furnace slag concrete is discussed, as experimental results, the compressive strength of granulated blast furnace slag concrete and ordinary concrete can be improved when concrete is cured in suitable condi-tion, namely the concrete has a certain"self-healing"ability.
