填料的作用是为了提高其耐热性,增加韧性,降低低温下的脆性,也减少沥青的消耗量,加入量通常为
A. 10%~30%
B. 15%~30%
C. 10%~20%
D. 15%~20%
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厚质防水涂料常温时为膏体或黏稠液体,不具有自流平的性能,一次施工厚度可以在()mm以上。
A. 2
B. 3
C. 4
D. 5
高聚物改性沥青防水涂料是指以( )为基料,用合成高分子聚合物进行改性,制成的水乳型或溶剂型防水涂料。
冷底子油是用建筑石油沥青加入( )、( )、轻柴油,或者用软化点50~70℃的煤沥青加入苯,溶合而配制成的沥青溶液。
How to memorize a speech?
A. Nobody expects you to be as perfect as Robot
B. Trying to visualize your speech
C. Trying to rehearsal as many times as you can so that you can be exactly accurate as the script.
D. Find the key words of each point.
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