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Anchor sealing material applied to anchor sealing of beam and slab tensioning hole

A tensioning and beam-slab technology, which is applied in the field of construction engineering, can solve the problems of the anchor material falling off, unable to press the grout, and low bonding strength

Inactive Publication Date: 2018-02-27
广西丰达三维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a kind of anchor sealing material for beam slab tension hole sealing, so as to solve the current problem of using traditional anchor sealing materials to seal anchor construction of prestressed beam slab tension holes in highways and railways. Anchor, resulting in low bonding strength, and even the anchor sealing material falls off directly and cannot seal the anchor; shrinkage and cracking lead to problems such as grouting failure

Method used

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  • Anchor sealing material applied to anchor sealing of beam and slab tensioning hole

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preparation example Construction

[0026] The preparation method of the anchoring material used for anchoring the tension hole of the beam slab comprises the following steps:

[0027] S1: Add quartz sand, wollastonite powder, calcite powder, Portland cement, and sulfoaluminum cement into the mixer according to the weight ratio, and stir for 12-25min at a speed of 200-400r / min to prepare mixture A;

[0028] S2: Add polycarboxylate superplasticizer powder, trimethylolpropane tris (3- aziridinyl propionate), latex powder, cyclohexanone peroxide by weight to the mixture A prepared in step S1 1. Tetramethylthiourea, stirring for 10-15min at a rotating speed of 200-300r / min to prepare mixture B;

[0029] S3: Add azodicarbonamide, boric acid, 3-diethylaminopropylamine, plastic expansion agent, and hydroxypropyl methylcellulose by weight to the mixture B prepared in step S2, at a speed of 300-500r Stir for 14-26min under / min to prepare mixture C;

[0030] S4: Add water with a mass of 14%-16% of the mixture C to the ...

Embodiment 1

[0033] A kind of anchor sealing material used for anchor sealing of beam and plate tension hole, which includes the following raw materials in parts by weight: 355 parts of quartz sand, 60 parts of wollastonite powder, 20 parts of calcite powder, 80 parts of portland cement, sulfur aluminum 120 parts of cement, 1.2 parts of polycarboxylate superplasticizer powder, 0.8 parts of trimethylolpropane tris(3-aziridinyl propionate), 8 parts of latex powder, 0.8 parts of cyclohexanone peroxide, tetramethyl 0.4 parts of thiourea, 0.5 parts of azodicarbonamide, 2 parts of boric acid, 0.8 parts of 3-diethylaminopropylamine, 1 part of plastic swelling agent, 6 parts of hydroxypropyl methylcellulose;

[0034] Described quartz sand is 50 orders;

[0035] Described wollastonite powder is 3000 orders;

[0036] Described calcite powder is 2000;

[0037] The preparation method of the anchoring material used for anchoring the tension hole of the beam slab comprises the following steps:

[003...

Embodiment 2

[0043] A kind of anchor sealing material for tension hole sealing of beams and slabs, which includes the following raw materials in parts by weight: 500 parts of quartz sand, 90 parts of wollastonite powder, 70 parts of calcite powder, 200 parts of portland cement, sulfur aluminum 200 parts of cement, 1.8 parts of polycarboxylate superplasticizer powder, 1 part of trimethylolpropane tris(3-aziridinyl propionate), 16 parts of latex powder, 1.5 parts of cyclohexanone peroxide, tetramethyl 0.8 parts of thiourea, 0.7 parts of azodicarbonamide, 3 parts of boric acid, 1.2 parts of 3-diethylaminopropylamine, 1.8 parts of plastic swelling agent, 9 parts of hydroxypropyl methylcellulose;

[0044] Described quartz sand is 80 orders;

[0045] Described wollastonite powder is 4000 orders;

[0046] Described calcite powder is 3000;

[0047] The preparation method of the anchoring material used for anchoring the tension hole of the beam slab comprises the following steps:

[0048] S1: Ad...

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Abstract

The invention discloses an anchor sealing material applied to anchor sealing of a beam and slab tensioning hole, and belongs to the technical field of constructional engineering. The anchor sealing material is prepared from quartz sand, wollastonite powder, calcite power, silicate cement, cement sulfoaluminate, polycarboxylate water reducer powder, trimethylolpropane tris(3-aziridinylpropanoate),latex powder, cyclohexanone peroxide, tetramethylthiourea, azodicarbonamide, boric acid, 3-diethylaminopropylamine, a plastic expanding agent and hydroxypropyl methyl cellulose. The anchor sealing material disclosed by the invention has the advantages of high compressive strength, high bending resistance, high bonding strength, extremely low shrinking percentage, and capability of preventing materials from cracking.

Description

【Technical field】 [0001] The invention belongs to the technical field of construction engineering, and in particular relates to an anchor sealing material for tension hole sealing of beams and slabs. 【Background technique】 [0002] In my country's existing post-tensioned prestressed anchor end treatment construction, the traditional material used is generally pure cement slurry, which is simply mixed with cement and a small amount of water by hand during construction. [0003] Anchor sealing materials At present, traditional anchor sealing materials are still used to seal anchors in the construction of road and railway prestressed beam slab tension holes, because the simple use of cement slurry as anchor sealing materials will cause the following serious problems: [0004] (1) The anchor is not tightly sealed; [0005] (2) The void and porosity are too large; [0006] (3) The adhesive strength is low, and even the anchor sealing material falls off directly and the anchor c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2201/50C04B14/06C04B18/146C04B14/28C04B7/02C04B24/24C04B24/128C04B24/008C04B24/16C04B24/129C04B22/0013C04B24/121C04B24/383C04B2103/0068
Inventor 陈汝森
Owner 广西丰达三维科技有限公司