| 摘要 |
FIELD: construction. ^ SUBSTANCE: putty contains the following components, wt %: cement 42.0-46.0, clay 16.0-20.0, water 23.0-25.0, bone glue 1.5-2.0, slaked lime 10.0-13.0, blue vitriol 0.5-1.0. ^ EFFECT: increased strength of putty adhesion to concrete surface. ^ 1 tbl |
