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Anti-freezing heat-preservation mortar

A thermal insulation mortar and mortar technology, applied in the field of construction mortar, can solve the problems of long setting time of ready-mixed mortar, damage to mortar structure, poor frost resistance, etc., and achieve the effect of changing the shape of ice crystals, ensuring the strength of mortar, and reducing freezing point.

Inactive Publication Date: 2017-05-31
南京旭程建筑材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the pre-mixed mortar in the prior art has a long setting time, and the internal structure of the mortar is damaged due to freezing and thawing, so the frost resistance is poor; at the same time, it will dry and shrink, crack, and have poor durability. Provide a kind of antifreeze and thermal insulation mortar and its manufacturing method, in order to solve the above-mentioned problems

Method used

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  • Anti-freezing heat-preservation mortar

Examples

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Embodiment 1

[0028] An antifreeze and thermal insulation mortar and a manufacturing method thereof, the manufacturing method comprising surface treatment of vitrified microspheres; preparing antifreeze; weighing raw materials and premixing to obtain mortar,

[0029] Surface treatment of the vitrified microbeads: soak the vitrified microbeads in the surface treatment agent for 2-3 minutes, take them out and drain them on a vibrating platform, use ultraviolet light to cure them to form a film, and dry them to obtain the vitrified microbeads after surface treatment ,

[0030] Preparation of antifreeze: Stir and mix 32 parts by weight of methyl butyruvate, 120 parts by weight of water and 84 parts by weight of ethanol at 30-35°C, and when the temperature drops to 20°C, add a pH regulator to bring the pH to 5-6 Finally, add 11 parts by weight of butyraldehyde; mix well and let stand for 10 minutes, then raise the temperature to 40-50°C, add 24 parts by weight of polyvinyl alcohol, stir evenly, ...

Embodiment 2

[0034] An antifreeze and thermal insulation mortar and a manufacturing method thereof, the manufacturing method comprising surface treatment of vitrified microspheres; preparing antifreeze; weighing raw materials and premixing to obtain mortar,

[0035] Surface treatment of the vitrified microbeads: soak the vitrified microbeads in the surface treatment agent for 2-3 minutes, take them out and drain them on a vibrating platform, use ultraviolet light to cure them to form a film, and dry them to obtain the vitrified microbeads after surface treatment ,

[0036] Preparation of antifreeze: Stir and mix 30 parts by weight of methyl butyruvate, 150 parts by weight of water and 90 parts by weight of ethanol at 30-35°C, and when the temperature drops to 20°C, add a pH regulator to bring the pH to 5-6 Finally, add 10 parts by weight of butyraldehyde; mix well and let stand for 10 minutes, then raise the temperature to 40-50°C, add 20 parts by weight of polyvinyl alcohol, stir well, ad...

Embodiment 3

[0040] An antifreeze and thermal insulation mortar and a manufacturing method thereof, the manufacturing method comprising surface treatment of vitrified microspheres; preparing antifreeze; weighing raw materials and premixing to obtain mortar,

[0041] Surface treatment of the vitrified microbeads: soak the vitrified microbeads in the surface treatment agent for 2-3 minutes, take them out and drain them on a vibrating platform, use ultraviolet light to cure them to form a film, and dry them to obtain the vitrified microbeads after surface treatment ,

[0042] Preparation of antifreeze: Stir and mix 40 parts by weight of methyl butyruvate, 110 parts by weight of water and 87 parts by weight of ethanol at 30-35°C, and when the temperature drops to 20°C, add a pH regulator to bring the pH to 5-6 Finally, add 14 parts by weight of butyraldehyde; mix evenly and let stand for 10 minutes, then raise the temperature to 40-50°C, add 25 parts by weight of polyvinyl alcohol, stir evenly...

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Abstract

The invention discloses anti-freezing heat-preservation mortar. A preparation method of the anti-freezing heat-preservation mortar comprises the following steps: performing surface treatment on glass beads, namely, soaking the glass beads in a surface treatment agent for 2-3 minutes, taking out, draining off water, performing ultraviolet curing filming on a vibration platform, and drying so as to obtain the glass beads subjected to surface treatment; preparing an anti-freezing agent; weighing raw materials, and pre-mixing the raw materials, thereby obtaining the anti-freezing heat-preservation mortar. The mass loss rate of the anti-freezing heat-preservation mortar disclosed by the invention in 20 times of freezing and thawing cycle is 2.4-2.8%, the compressive strength loss rate of the mortar is 9-13%, the heat conduction coefficient of the mortar is 0.042-0.049W / (m.K), the shrinkage rate of the motar is 0.11-0.13%, the compressive strength of the mortar within 28 days is 22.5-26.3MPa, and the anti-freezing heat-preservation mortar can be used under a negative temperature condition of 5 DEG C below zero to 15 DEG C below zero.

Description

technical field [0001] The invention relates to an antifreeze and thermal insulation mortar, which belongs to the technical field of construction mortar. Background technique [0002] Building thermal insulation mortar refers to the mortar composed of cementitious materials, lightweight aggregate and other functional additives that can insulate building walls. It has the advantages of good construction performance, stable material performance, and good environmental safety. It is a A widely used building insulation material. The strength and construction performance of the currently used mortar are insufficient, which can only meet the requirements of on-site construction; and for winter construction, the currently used ready-mixed mortar has a long setting time, and the internal structure of the mortar is damaged due to freezing and thawing, so the frost resistance is poor; at the same time It will dry and shrink by itself, causing problems such as cracking, poor waterproo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/10C04B24/32C04B111/20C04B103/60
CPCC04B20/1037C04B20/1055C04B28/00C04B40/0046C04B2103/601C04B2111/20C04B2201/32C04B2201/50C04B14/06C04B18/146C04B14/047C04B14/22C04B2103/0057C04B22/142C04B20/0048C04B24/045C04B24/02C04B2103/0094C04B24/008C04B24/2623C04B24/121C04B24/24
Inventor 刘曲波
Owner 南京旭程建筑材料科技有限公司