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Business deal admixture concrete resistance to chloride ion penetration of concrete achievements booster additive is a multi- product research and development to build an independent research organization , the product can be a good low chloride ion content in concrete , reinforced concrete and mobile concrete batching plant , durable concrete progress nature , the current popularity of the product in the port engineering, bridge , marine engineering and other necessary indicators of low electric flux concrete projects . Deal with concrete sand production subsidiary is subject , Kelin Xiang implied , according to the Fujian Provincial Department of achievements ” of ready-mixed concrete products in Fujian Province RBI quality standards” delineation ” in scarce natural resource areas should vigorously promote the sand artificial sand mobile concrete mixing batch plant egg laying block machine, harsh restraint purification sand exercise areas . processing reward and punishment or reward and punishment purification treatment shall not meet the requirements for the preparation of concrete sand without purification . prohibited purify fresh sand for steel or steel ( pipes ) concrete with steel and concrete layout of the force . ” . Meanwhile the ” Fujian construction machinery concrete quality goods RBI scale ” is also ready-mixed concrete and sand content of chlorine ions have a clear delineation sampling tests to monitor sampling . Acceptance of the company ‘s original raw material procurement harsh implementation of the system based on a coherent mass RBI purchase exercise sand as concrete material environment does not exist.