Fireproof cement how long is caky

1. should know to condense above all the concept of gender and setting time. Fireproof cementBelong to indeterminate form fireproof material, add water or fluid shape bond to mix after closing, agitate makings loses the property that touch denaturation or plasticity and is in caky condition to become gradually condense quality. Experience place of this one process to need time to call setting time. Whole process is divided into coagulate first and coagulate eventually. Just should begin to lose plasticity to be called coagulate first, should lose plasticity completely to be called coagulate eventually. 2. is right for fireproof cement, want a foundation you are specific use data deserves to compare and use position, use method will judge specific setting time. Usually, to satisfy the requirement of construction basic cycle time, time coagulates to must not antedate first 40min, and coagulate eventually time is not gotten late at 8H 3. also has a few special cases, should use fireproof cement to join exchange other and fireproof pouring makings when be being used at spray eject to work, it is better to ask setting time is shorter, ask to Shan Ning can happen instantly after gush arrives on face getting in season sometimes, layer happening falls off or collapse in order to prevent spray.   Fineness: Cement grain is finer, the area that compare a list is larger, to hydrate reaction is jumped over more quickly sufficient, inchoate with later period intensity taller. National regulation: The area that compare a list should be more than 300 square metre / kilogram, it is otherwise unqualified. 2, setting time: Will finish agitate to assure to there is enough time when construction, carry, shape wait for all sorts of craft, of cement time coagulates to should not be too short first; After construction ends, hope cement can as soon as possible sclerotic, generation intensity, coagulate eventually so time shoulds not be too long. Of silicate cement time coagulates to must not antedate 45 minutes first, coagulate eventually time is not gotten late at 390 minutes. 3, bulk invariability: Grout body is in condense the bulk invariability that the uniformity that the bulk in sclerotic process changes calls cement. If bulk change is inhomogenous namely bulk invariability is undesirable, produce warp and craze easily, reduce project quality to appear even accident.