Polyester grouting material and preparation method thereof
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A grouting material and polyester technology, applied in the field of polyester grouting material and its preparation, can solve the problems of unfavorable wide application of polyester grouting material and the like
Active Publication Date: 2018-01-23
ZHANGJIAGANG YINGHUA MATERIAL TECH CO LTD
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[0005] Based on this, it is necessary to address the problem that traditional polyester grouts are not conducive to...
Method used
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preparation example Construction
[0069] The preparation method of the polyester grouting material of an embodiment, comprises the steps:
[0070] S10, providing the above-mentioned first mixing component, second mixing component and third mixing component.
[0071] S20. Mix the first mixing component and the second mixing component uniformly, then add the third mixing component and mix uniformly to obtain polyester grout.
[0072] In the process of uniformly mixing the first mixing component and the second mixing component, each component in the first mixing component and the second mixing component reacts to form a cross-linked network structure.
[0073] Preferably, before the first mixing component and the second mixing component are completely cross-linked, the third mixing component is added in batches and mixed evenly, and then the pouring construction is performed.
Embodiment 2
[0084] The preparation method of the polyester grout of embodiment 2 comprises the steps:
[0085] Mix E51 type epoxy resin, KH550 coupling agent, n-butyl glycidyl ether, polyamide (amine value 320-480) and DMP-30 quickly and evenly. Within 5 minutes, add the third mixing component consisting of sand, barium sulfate powder, fly ash and talcum powder in batches, stir and mix evenly to obtain grouting material.
[0086] When the polyester grout of Example 2 is poured into the underwater molding (28 days) at 10°C, the compressive strength of the sample is 68.2MPa; the normal tensile strength of the underwater and C30 concrete is 2.7MPa, which is the cohesion of the concrete at the bonding place Destruction; shrinkage rate 0.1%; polyester grouting material has no obvious dispersion in water, and has excellent flowability.
[0087] Please also see figure 1 and figure 2 , before using the polyester grout of Example 2 for underwater pouring, the gap on the concrete surface was ab...
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Abstract
The invention relates to a polyester grouting material and a preparation method thereof. The polyester grouting material comprises the following raw materials and components in parts by weight: 5 to 15 parts of a first mixed component, 5 to 15 parts of a second mixed component and 50 to 90 parts of a third mixed component, wherein the first mixed component comprises the following components in parts by weight: 60 to 90 parts of epoxy resin, 0.5 to 5 parts of a coupling agent and 1 to 30 parts of a reactive diluent; the second mixed component comprises the following components in parts by weight: 10 to 50 parts of a curing accelerator and 50 to 90 parts of an epoxy hardener; the third mixed component comprises the following components in parts by weight: 30 to 90 parts of sand, 0 to 30 parts of a barium sulfate powder, 0 to 10 parts of coal ash and 0 to 10 parts of a talcum powder; the sand comprises the following components in parts by weight: 0 to 5 parts of first sand (5 to 10 meshes), 10 to 30 parts of second sand (10 to 30 meshes), 30 to 40 parts of third sand (30 to 40 meshes), 15 to 30 parts of fourth sand (40 to 40 meshes) and 5 to 10 parts of fifth sand (60 to 100 meshes).The raw materials of the polyester grouting material are cooperatively used with one another, so that the shrinking percentage and the integral cost can be reduced, and the polyester grouting materialis beneficial for wide application.
Description
technical field [0001] The invention relates to the technical field of building materials, in particular to a polyester grouting material and a preparation method thereof. Background technique [0002] The construction, repair and reinforcement of wading structures such as ports, wharves, dams and road bridges often require grouting materials for pouring construction. [0003] Traditional grouting materials mainly include cement grouting materials, polymer modified cement-based grouting materials and polyester grouting materials. Among them, both cement grout and polymer modified cement-based grout have problems of easy dispersion in water construction, low strength, small interfacial adhesion in water, long curing time at low temperature, weak permeability resistance, poor freeze-thaw cycle resistance and Disadvantages such as the need for cofferdam drainage operations. [0004] Compared with these two kinds of grouting materials, polyester grouting materials are mainly c...
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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