| 摘要 |
<p>FIELD: construction. ^ SUBSTANCE: raw mix for producing cement bonded particle board includes the following in wt %: Portland cement 27.06-37.81, milled conifer timber with wooden particles size not exceeding 40 mm in length and 10 mm in width and 5 mm in thickness 20.16-39.95, water 28.39-36.24, liquid soda ash glass 0.71-0.90, industrial cleared aluminium sulfate 0.48-0.61, superplasticising agent SP-1 0.02-0.04, and poly vinyl acetate 3.37-4.26. ^ EFFECT: increased physical and mechanical characteristics of items. ^ 1 ex, 1 tbl</p> |
