Condensation control type repair mortar for prefabricated parts and preparation method of solidification control type repair mortar

A technology for repairing mortar and prefabricated components, applied in the field of building materials, can solve the problems of high material cost, prolonged time, difficult to control the setting speed, etc., and achieve the effect of high bonding strength and guaranteeing construction quality.

Pending Publication Date: 2022-04-19
FUKE TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although polymer repair materials have the advantage of shorter curing time, their compatibility with small local damage is not very good, and the material cost is relatively high
However, the repair mortar using Portland cement as the main material needs to wait for a long time to develop strength after repair, which cannot meet the requirements of ra

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The special setting-adjusting repair mortar for prefabricated components is composed of the following components in parts by mass: 10 parts of cement; 30 parts of special cement; 5 parts of gypsum; 40 parts of sand; 1 part of water-reducing agent; 1.5 parts of setting agent; 0.5 part of agent; 1 part of penetrating agent; 11 parts of rubber powder. Among them, the cement is P.O.42.5 ordinary Portland cement, the special cement is sulphoaluminate cement, 10 parts of aluminate cement and 20 parts of dry powder, the gypsum is anhydrous gypsum, the sand is 50-100 mesh quartz sand, and the water reducer is FOX Cerago929 polycarboxylic acid powder, the coagulation agent is a mixture of lithium silicate by mass: silica sol: bauxite = 0.225:0.6:0.675, the defoamer is silicone defoamer, and the penetrating agent is diisobutylnaphthalene Sodium sulfonate, rubber powder is pure acrylic rubber powder.

[0025] Preparation:

[0026] First prepare the coagulation agent, add lithium...

Embodiment 2

[0029] The special setting-adjusting repair mortar for prefabricated components is composed of the following components in parts by mass: 15 parts of cement; 31 parts of special cement; 5 parts of gypsum; 31 parts of sand; 2 parts of water reducing agent; 1 part of agent; 2 parts of penetrating agent; 10 parts of rubber powder. The cement is P.O.42.5 ordinary portland cement 10 parts P.W.42.5 white cement 5 parts dry powder mixed, the special cement is sulphoaluminate cement, the gypsum is anhydrite, the sand is 50-100 mesh quartz sand, and the water reducer is FOX Cerago929 polycarboxylic acid powder, the coagulation agent is lithium silicate: silica sol: bauxite = 0.375: 0.6: 0.525 mixture, the defoamer is silicone defoamer, the penetrating agent is sodium diisobutylnaphthalene sulfonate, The rubber powder is pure acrylic rubber powder.

[0030] Preparation method: Weigh each component according to the above-mentioned mass ratio, add it into a gravity-free mixer, and mix it...

Embodiment 3

[0032] The special setting-adjusting repair mortar for prefabricated components is composed of the following components in parts by mass: 12 parts of cement; 30 parts of special cement; 8 parts of gypsum; 30 parts of sand; 2 parts of water reducing agent; 4 parts of setting agent; defoaming 2 parts of agent; 2 parts of penetrating agent; 10-15 parts of rubber powder. The cement is P.O.42.5 ordinary portland cement 6 parts P.W.42.5 white cement 6 parts dry powder mixing, special cement is sulphoaluminate cement 15 parts aluminate cement 15 parts dry powder mixing, gypsum is anhydrite, and sand is 50- 100-mesh quartz sand, FOXCerago929 polycarboxylate powder as water reducer, coagulation regulator (lithium silicate: silica sol: bauxite = 3.0:4.0:3.0 mixture), defoamer as silicone defoamer, penetration The agent is sodium diisobutylnaphthalene sulfonate, and the rubber powder is pure acrylic acid rubber powder.

[0033] Preparation method: Weigh each component according to the a...

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Abstract

The invention discloses a set-control type repair mortar for a prefabricated part and a preparation method thereof. The set-control type repair mortar is characterized by comprising the following components in parts by mass: 10-15 parts of ordinary cement; 30 to 35 parts of special cement; 5-8 parts of gypsum; 30 to 45 parts of sand; 1-2 parts of a water reducing agent; 1-4 parts of a thickening time control agent; 0.5 to 2 parts of a defoaming agent; 0.5-2 parts of a penetrant; the special cement is one or a mixture of sulphoaluminate cement and aluminate cement, and the thickening time control agent is a mixture of lithium silicate, silica sol and bauxite. The thickening time control agent is prepared through high-speed stirring, and then the repairing mortar is prepared through mixing. The prepared repairing mortar is adjustable in setting time, high in early strength and high in bonding strength, and can meet the repairing requirements of the fabricated prefabricated parts.

Description

technical field [0001] The invention relates to a building material, in particular to a mortar for repairing damaged parts of prefabricated components, especially a prefabricated component repairing mortar capable of adjusting setting time and a preparation method thereof. Background technique [0002] With the development of construction industrialization technology, the prefabricated building structure ushered in a period of opportunity for development in our country. Compared with traditional cast-in-place building structures, the use of prefabricated building structures can not only shorten the construction period, improve building quality, but also reduce labor costs, save resources, energy, and reduce pollution. Therefore, this technology will be used in the future urban construction field Will have broad development prospects. [0003] Prefabricated buildings are assembled from various prefabricated components. During the process of manufacturing prefabricated compon...

Claims

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Application Information

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IPC IPC(8): C04B28/16C04B111/72
CPCC04B28/16C04B2111/72C04B2201/05C04B7/02C04B7/32C04B7/323C04B14/06C04B2103/302C04B12/04C04B22/06C04B24/42C04B24/20C04B24/2641
Inventor 徐德高杨洋顾建平傅雁
Owner FUKE TECH (SUZHOU) CO LTD
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