voids and pits meaning in English

蜂窝麻面

Experimental results indicated that the polypropylene fiber can improve the workability of concrete availably , and can increase the presentation quality of structures with the voids and pits decreased ; the cracks of beam are controlled effectively , the width and length of crack decreased , the dispersibility of crack in beam face improved , and the ductility of beam increased ; and the cracking load of reinforced concrete beam is increased , the amplify up to about 30 % , simultaneity the ultimate bear capacity increased
试验研究表明，使用聚丙烯纤维后，能有效改善新拌混凝土的和易性，并能增强混凝土构件的外观质量，减少构件表面蜂窝、麻面、气孔、细小裂纹等；同时，在破坏试验过程中发现梁的裂缝能得到有效控制，裂缝宽度减小，裂缝的发展高度降低，裂缝的条数增加，提高了梁截面的裂缝分散能力，增强了梁中混凝土的韧性；提高了钢筋混凝土梁的开裂荷载，幅度可达30左右，增强了结构的延性，提高了结构的抗裂性能和屈服荷载。