狠狠久久综合,国产在线五月综合婷婷,日本中文字幕在线观看视频,欧美日韩亚洲一区二区精品,露胸美女图片,热辣小秘书办公室,国产色视频网站免费观看

CN
CN
    • PCA?-Ⅳ Polycarboxylate Superplasticizer with Shrinkage-reducing and Anti-cracking
    PCA?-Ⅳ Polycarboxylate Superplasticizer with Shrinkage-reducing and Anti-cracking Download

    1565837655736847jb0v.jpg

    PCA ? -IV is a new generation superplasticizer with a base of modified Polycarboxylic ether. It offers maximal water reduction, increased early strength, and enhanced finishing characteristics. PCA ? -IV contains no formaldehyde, calcium chloride or other purposely added chlorides and will not initiate or encourage the corrosion of the steel present in the concrete. It is formulated to comply with the subsequent specifications for concrete admixture: ASTM494, Type F; BS EN934:2/3.2.3.