| 摘要 |
<p>1,171,079. Consolidating earth. RAYONIER, Inc. 8 March, 1968 [12 July, 1967], No. 11364/68. Heading E1F. '[Also in Division C3] An aqueous gel-forming grouting composition comprises an aqueous solution containing 25-45% wt. (a) sulphonated polyphenolic material extracted from coniferous tree bark and/or quebracho wood; and 5-40% wt, based on wt of (a), of (b) a water-soluble chromate or dichromate; and 5-25% wt (c) borax. The composition has pH 8-10.5.</p> |
