MANUFACTURE OF CONCRETE-LIKE PRODUCTS

摘要

1388242 Hardening artificial stone INSTITUTUL DE STUDII SI PROIECTARI HIDROENERGETICE 6 July 1973 [17 July 1972] 32275/73 Heading C1H A mixture of aggregate, fly ash and water is poured into a mould, vibrated, and subjected to H.F.M. field. The water can contain 1-3% of a mixture of CaSO 4 , Ca(OH) 2 and NaOH, and sand and gravel are used as aggregates.