
fresh concrete properties in mining industry - south africa workability. the term workability is complex and has several meanings. it includes slump, slump retention, flow, flow retention and placeability, e.g. pumpability. high slump and flow values do not automatically exhibit sufficient pumpability properties.,manufacturing businesses for sale in south africa,amethyst mine in zambia. location bloemhof, south africa. status new. description amethyst mine for sale. has an exploration licence. 102 hectares of land in zambia price r6,290,000 only (us$430,000) the best amethyst gemstone in the world. 100 hectares land. on title.