A.20℃ B.25℃ C.30℃ D.35℃
A.1.50% B.2% C.2.50% D.3%
A.膠凝材料計(jì)量允許偏差±3% B.粗、細(xì)骨料計(jì)量允許偏差±3% C.拌合用水計(jì)量允許偏差±2% D.外加劑計(jì)量允許偏差±0.5%