快硬磷酸镁-铁铝酸盐复合水泥的抗冻性研究
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Study on frost resistance of rapid-hardening magnesium phosphate-ferro-aluminate composite cement
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图5. 标准养护28天M0和M4试件冻融循环前后的SEM图 |
Fig. 5. SEM images of M0 and M4 samples before and after freeze-thaw cycles after 28 days of standard curing |
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