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nature : from the cement mixer, add water to flow to the exchange, that is, from plastic state to the more compact solid state required time. Cement pipe-setting time and the ending time condensate time. My standards : Portland cement and ordinary portland cement, slag cement, ash cement, fly ash cement pipe shall be back in time 45 minutes, and finally condensate time not later than 12 hours; Aluminate cement pipe shall be back in time 40 minutes, and finally condensate time not later than 10 hours; sulfur (railways) aluminate cement pipe shall be back in time 25 minutes, and finally condensate time not later than three hours. Setting time direct impact on the pace of the concrete casting and construction progress.
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