Concrete pile tube
A technology for concrete pipe piles and concrete, applied in the field of concrete pipe piles, can solve problems such as hidden dangers of production safety, low cost performance of residual slurry recovery and reuse, and influence on the quality of pipe piles, so as to improve the load, improve the promotion value, and reduce the environment. Effects of pollution and energy consumption
Inactive Publication Date: 2015-07-01
TIANJIN ZEYUAN CONCRETE CO LTD
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Problems solved by technology
Two links have always been a headache for pipe pile enterprises: one is the large amount of residual slurry produced by centrifugation, which not only contains a large amount of water, but also contains a lot of cement and admixture components, which directly affects the quality of the pipe pile after forming. The recovery and reuse of residual pulp is less cost-effective, and a large amount of energy consumption will be generated in the process of recovery and reuse; the second is a large amount of energy consumption generated by autoclaving, and a large pressure vessel must be used, there is a serious problem production safety hazard
Method used
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Embodiment 1
[0027] A concrete pipe pile, its raw material components and weight (Kg) are respectively:
[0028]
[0029]
[0030] The steps of the production method of the above-mentioned non-residual slurry-free autoclaved prestressed concrete pipe pile are:
[0031] (1) Add fine aggregate and coarse aggregate to the reactor, stir for 10 seconds, then add cement, mineral powder and mineral additives, continue stirring for 30 seconds, and finally add water and water reducer, stir for 90 seconds to obtain a concrete mixture;
[0032] ⑵The concrete mixture is prestressed and stretched after being distributed and molded;
[0033] (3) Centrifuge the prestressed and stretched concrete mixture, and perform the centrifugation steps of low speed, low medium speed, medium speed and high speed in sequence, and the parameters of each centrifugation step are set as follows:
[0034] Low-speed centrifugation: the speed is set at 58 / min, and the time is 4min±10s;
[0035] Low and medium speed c...
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The invention relates to a concrete pipe tube, which comprises the following components by weight part: 340 parts of cement, 70 parts of ore powder, 650 parts of fine aggregate, 1300 parts of crude aggregate, 90 parts of tap water, 40 parts of sodium silicate and 10 parts of water reducer. Through multitime experiments and a contrastive analysis, sodium silicate is added, the high performance water reducer is blended, and steps of current pile tube centrifugation and steam boiling are adjusted, no residual slurry after centrifugation is realized, intensity of one time demoulding can reach C80, steps of residual slurry dumping and steam pressing can be avoided, enterprise environmental pollution and energy consumption are greatly reduced, and endurance performance of the concrete is greatly increased.
Description
technical field [0001] The invention belongs to the field of concrete pipe piles, in particular to a concrete pipe pile. Background technique [0002] The existing production process of concrete pipe piles is divided into reinforcement cutting, cage weaving, assembly, concrete pouring, tensioning, centrifugation, steam curing and autoclaving. Two links have always been a headache for pipe pile enterprises: one is the large amount of residual pulp produced by centrifugation, which not only contains a lot of water, but also contains a lot of cement and admixture components, which directly affects the quality of the pipe pile after forming. The recovery and reuse of residual stock is less cost-effective, and a large amount of energy consumption will be generated in the process of recovery and reuse; the second is a large amount of energy consumption generated by autoclaving, and a large pressure vessel must be used, there is a serious problem production safety hazards. The ab...
Claims
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IPC IPC(8): C04B28/00C04B14/02C04B14/06
Inventor 吕宝旺
Owner TIANJIN ZEYUAN CONCRETE CO LTD