CAJ | 학술논문

采用快冻法，对玻化微珠保温承重混凝土和普通混凝土进行了25次、30次、50次、75次冻融循环试验研究，根据试验结果得出了抗压强度随冻融循环的退化规律，建立了与冻融参数相关的退化计算公式。试验结果表明，随着冻融循环次数的增加，普通混凝土与玻化微珠保温承重混凝土立方体抗压强度呈下降趋势，但玻化微珠保温承重混凝土的抗压强度下降趋势缓和，对冻融循环较不敏感，这说明玻化微珠保温承重混凝土抗冻性能优于普通混凝土，且冻融次数越多越明显。
채용쾌동법，대파화미주보온승중혼응토화보통혼응토진행료25차、30차、50차、75차동융순배시험연구，근거시험결과득출료항압강도수동융순배적퇴화규률，건립료여동융삼수상관적퇴화계산공식。시험결과표명，수착동융순배차수적증가，보통혼응토여파화미주보온승중혼응토립방체항압강도정하강추세，단파화미주보온승중혼응토적항압강도하강추세완화，대동융순배교불민감，저설명파화미주보온승중혼응토항동성능우우보통혼응토，차동융차수월다월명현。
Using fast freeze-thaw method, the freeze-thaw tests with 25, 30, 50 and 75 cycles on the glazed hollow bead insulation concrete and ordinary concrete are carried out. Base on the test results, the degradation law between the compressive strength of concrete and the freeze-thaw cycles is attained, and the degradation formulas for compressive strength with the freeze-thaw cycles are established. The test results indicate that compressive strengths of the two kinds of concretes decrease with the increasing the freeze-thaw cycles, but the downward trend of compressive strength of glazed hollow bead insulation concrete is slower than that of the ordinary concrete, which shows that frost resistance of glazed hollow bead insulation concrete precedes that of ordinary concrete, especially under the condition of more freeze-thaw cy-cle number.