Production technology of precast reinforced concrete piles

A technology of reinforced concrete and preparation technology, which is applied in the field of preparation of reinforced concrete prefabricated piles, can solve the problems of low strength of centrifugal concrete piles, unreasonable concrete formula, short steel mold, etc., and achieve reasonable concrete formula, small footprint, The effect of reducing the basic engineering quantity and engineering cost

Inactive Publication Date: 2015-06-17
青岛昊河水泥制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process has the following disadvantages: on the one hand, the steel mold used is relatively short, and one mold can only produce one centrifugal concrete pile of more than 10 meters at a time; on the other hand, the concrete formula is unreasonable, and the prepared centrifugal concrete pile has low strength and low quality. Difference

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take the raw materials according to the following proportions by weight:

[0029] 80 parts of cementitious material, 25 parts of fine aggregate, 50 parts of coarse aggregate, 6 parts of water reducer and 150 parts of water; the cementitious material is made of the following raw materials in parts by weight: 6 parts of cement, finely ground 15 parts of sand, 12 parts of fly ash and 3 parts of sodium metasilicate.

[0030] The preparation process of reinforced concrete prefabricated piles, the specific steps are as follows:

[0031] a. Select prestressed main reinforcement and spiral reinforcement, and use automatic welding machine to process and manufacture prefabricated concrete pile reinforcement cage;

[0032] b. After installing the prepared two or more reinforcement cages on the end plate, they are connected end to end through the intermediate joint device, forming a line;

[0033] c. Disassemble the precast concrete pile mold into upper and lower half molds; hois...

Embodiment 2

[0043] Take the raw materials according to the following proportions by weight:

[0044] 100 parts of cementitious material, 20 parts of fine aggregate, 100 parts of coarse aggregate, 5 parts of water reducer and 100 parts of water; the cementitious material is made of the following raw materials in parts by weight: 5 parts of cement, finely ground 30 parts of sand, 10 parts of fly ash and 5 parts of sodium metasilicate.

[0045] The preparation process of reinforced concrete prefabricated piles, the specific steps are as follows:

[0046] a. Select prestressed main reinforcement and spiral reinforcement, and use automatic welding machine to process and manufacture prefabricated concrete pile reinforcement cage;

[0047] b. After installing the prepared two or more reinforcement cages on the end plate, they are connected end to end through the intermediate joint device, forming a line;

[0048] c. Disassemble the precast concrete pile mold into upper and lower half molds; ho...

Embodiment 3

[0058] Take the raw materials according to the following proportions by weight:

[0059] 90 parts of cementitious material, 30 parts of fine aggregate, 30 parts of coarse aggregate, 10 parts of water reducer and 200 parts of water; the cementitious material is made of the following raw materials in parts by weight: 10 parts of cement, finely ground 10 parts of sand, 15 parts of fly ash and 3 parts of sodium metasilicate.

[0060] The preparation process of reinforced concrete prefabricated piles, the specific steps are as follows:

[0061] a. Select prestressed main reinforcement and spiral reinforcement, and use automatic welding machine to process and manufacture prefabricated concrete pile reinforcement cage;

[0062] b. After installing the prepared two or more reinforcement cages on the end plate, they are connected end to end through the intermediate joint device, forming a line;

[0063] c. Disassemble the precast concrete pile mold into upper and lower half molds; ho...

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Abstract

The invention discloses a production technology of precast reinforced concrete piles. The technology comprises the following steps: making a steel reinforcement cage, putting the steel reinforcement cage in a precast concrete pile die, injecting concrete to the die, arranging the die in a centrifuge device, carrying out centrifugal rotation, carrying out steam curing in a curing pool, demolding, taking out, and molding. The precast concrete pile die is an elongated die with the length of above 25m, and a plurality of precast concrete piles can be simultaneously produced through one die; and the above concrete is prepared from the following raw materials, by weight, 80-100 parts of a gelling material, 20-30 parts of fine aggregate, 30-100 parts of coarse aggregate, 5-10 parts of a water reducer and 100-200 parts of water. The elongated steel die adopted in the invention allows a plurality of centrifugal concrete piles with the length of above 10m to be made, the concrete formula is reasonable, and the centrifugal concentrate piles made in the invention have high strength and good quality.

Description

technical field [0001] The invention relates to a preparation process of reinforced concrete prefabricated piles. Background technique [0002] At present, the existing reinforced concrete precast piles are: precast concrete square pile, precast concrete rectangular pile, prestressed precast concrete square pile, prestressed precast concrete rectangular pile, centrifugal prestressed concrete pipe pile, centrifugal prestressed concrete hollow square pile pile etc. The preparation process has the following disadvantages: on the one hand, the steel mold used is relatively short, and one mold can only produce one centrifugal concrete pile of more than 10 meters at a time; on the other hand, the concrete formula is unreasonable, and the prepared centrifugal concrete pile has low strength and low quality. Difference. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a preparation process for reinforced concrete pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26
Inventor 王传波王风民田斌邓国威崔凯
Owner 青岛昊河水泥制品有限责任公司
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