11.砌筑砂漿強(qiáng)度測(cè)定時(shí)的標(biāo)準(zhǔn)試件尺寸為(     )

A.200mm×200mm×200mm                           B.150mm×150mm×150mm

C.100mm×100mm×100mm                           D.70.7mm×70.7mm×70.7mm

12.生產(chǎn)硅酸鹽水泥時(shí)，一定要加入適量的石膏，其目的是(     )來(lái)自www.Examw.com

A.緩凝                                                           B.促凝

C.增強(qiáng)                                                           D.膨脹

13.要提高水泥的抗硫酸鹽侵蝕性能，下列措施哪種是不恰當(dāng)?shù)模?     )

A.盡量降低熟料中C₃A的含量                        B.適當(dāng)提高熟料中C₂S的含量

C.盡量提高熟料中C₄AF的含量                      D.摻加適量礦渣作為混合材

14.水泥熟料礦物組成中水化熱最大的是(     )

A.C₃S                                                            B.C₂S

C.C₃A                                                            D.C₄AF

15.宜采用蒸汽養(yǎng)護(hù)的水泥品種為(     )

A.礦渣水泥                                                    B.硅酸鹽水泥

C.快硬水泥                                                    D.高鋁水泥