A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">提高混凝土的密实度</span>
B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">保证足够的钢筋保护层厚度</span>
C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">加阻锈剂</span><span style="FONT-FAMILY: ; FONT-SIZE: 10.5pt" lang="EN-US"><span style="mso-spacerun: yes"></span></span>
D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 12pt; mso-font-kerning: 1.0pt; mso-bidi-font-family: ">A+B</span>