Key words: lightweight grouting mortar, vermiculite, well cementing.
Selection of vermiculite-containing mixture based on cement brands PCT-I-G-CC-1 and PCT-1-100 were conducted in the framework of this research. This mixture provides lower density of grouting mortar while other parameters are provided in accordance with GOST 1581-96 "Grouting portland cement. Standard". Performance capabilities of grouting mortar were studied before and after polymeric reagents adding.
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