研究了聚丙烯纤维和微膨胀复合对混凝土抗折强度、抗渗性和收缩变形的影响。
The influence of compounding polypropylene fiber and expansion on flexure strength, impermeability and the shrinkage deformation is studied.
其低温开裂机理表明聚酯纤维低温抗裂性是影响沥青路面温度收缩裂缝的主要因素。
The low temperature mechanism indicates the capability of low temperature anti-cracking of polyester fiber is the main factor affecting temperature shrink crack.
乳胶水泥具有较好的抗脆裂性及较小的收缩性，能对尾管提供长期支撑，是多底井固井理想的水泥浆体系。
The gel cement has better embrittlement resistance and little shrinkage, and can provide long time supporting for the liner, thus it is an ideal select for multi-lateral cementing.
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