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C80 autoclaving-free concrete pole production technology

A concrete and pressure-free steaming technology, which is applied in the field of concrete pole production, can solve the problems of high safety requirements for autoclaves, reduction of concrete strength, and damage to concrete structures, so as to achieve good economic and social benefits, reduce energy consumption, The effect of increasing the pause time

Active Publication Date: 2014-11-12
SHANDONG LUTAI BUILDING MATERIAL SCI & TECH GRP CO LTD
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Problems solved by technology

[0002] At present, the C80 concrete used in the production of high-strength electric poles or pipe piles is cured by atmospheric pressure steam and then put into the autoclave for pressure steaming. Large, serious waste of steam, and the autoclave has high safety requirements and high maintenance costs, which eventually lead to an increase in product costs

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  • C80 autoclaving-free concrete pole production technology

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Embodiment 2

[0032] A C80 non-pressure steamed concrete pole production technology includes the following steps:

[0033] (1) Mixed material: The mixed material adopts the secondary mixing method, that is, first uniformly mix cement, sand, high-activity mineral admixture, high-efficiency early-strength superplasticizer and 30% water, and then add gravel and 70% water Stir for 3 minutes;

[0034] (2) Molding: Pour the mixed material into the electric pole steel mold for centrifugal molding, and take samples to make test blocks at the same time;

[0035] (3) Steam curing: put the pole and the test block into the curing pool for normal pressure steam curing; the steam curing system is to stop at room temperature for 2 hours, and evenly heat up to 85°C in 2 hours, and the heating rate does not exceed 35°C per hour. After 7 hours, the temperature was lowered to 40°C for 30 minutes, and the boiler pressure was maintained at 0.15MPa.

[0036] (4) Testing: Demoulding the test block to test th...

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Abstract

The invention discloses a C80 autoclaving-free concrete pole production technology which comprises the following steps of: (1) mixing materials, namely uniformly stirring components of concrete by a secondary stirring mode; (2) forming, namely pouring the mixed material mixed to a pole steel mould for centrifugal shaping, and meanwhile sampling and preparing a test block; (3) performing steam maintenance, namely placing the pole and the test block to a maintenance pool for constant pressure steam maintenance; and (4) detecting, namely demoulding the test block and detecting one-day strength and seven-day strength, respectively. According to the C80 autoclaving-free concrete pole production technology provided by the invention, the autoclaving link of concrete can be omitted in the production process of high strength poles, so that energy consumption can be reduced. Autoclaving is omitted, so that concrete is prevented from being damaged by autoclaving, and the product durability is ensured. The technology can be further widely applied to tubular pipe production and has god economical and social benefits as well as good popularization prospect.

Description

technical field [0001] The invention relates to the field of concrete electric pole production methods, in particular to a C80 pressure-free steaming concrete electric pole production technology. Background technique [0002] At present, the C80 concrete used in the production of high-strength electric poles or pipe piles is cured by atmospheric pressure steam and then put into the autoclave for pressure steaming. Large, serious waste of steam, and the autoclave has high safety requirements and high maintenance costs, which eventually lead to an increase in product costs. Contents of the invention [0003] Aiming at the above disadvantages, the present invention provides a C80 non-pressure steamed concrete pole production technology. The method has the advantages of low maintenance cost, low cost and keeping the internal structure of the concrete intact. [0004] The technical scheme adopted by the present invention to solve the technical problem is: a kind of C80 autocla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 赵德存刘玉魁陈爱玲
Owner SHANDONG LUTAI BUILDING MATERIAL SCI & TECH GRP CO LTD
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