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Machine-spraying light-weight plastering mortar and preparation method thereof

A light-weight, heat-retaining mortar technology, applied in the field of mortar, can solve the problems of high aggregate density, easy to block nozzles, and poor surface quality, and achieve the effects of low density, improved comfort, and high porosity

Inactive Publication Date: 2018-01-23
苏州大乘环保新材有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the prior art, for example, the patent of invention with the publication number "CN101386506A" discloses a light-weight thermal insulation mortar. Due to its excessive aggregate density, this type of mortar is easy to block the nozzle during the machine spraying process; if it is added too much Too much dilution will lead to poor quality of the final molding surface, so a plastering mortar suitable for machine spraying is required

Method used

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  • Machine-spraying light-weight plastering mortar and preparation method thereof
  • Machine-spraying light-weight plastering mortar and preparation method thereof
  • Machine-spraying light-weight plastering mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1- Embodiment 10

[0046] Embodiment 1-embodiment 10 is prepared through the following steps:

[0047] A preparation method for preparing lightweight thermal insulation mortar, comprising the following steps:

[0048] Step 1. Premixing: Ordinary Portland cement, slaked lime, hydrophobic redispersible latex powder, water repellent, polyvinyl alcohol powder, hydrated magnesium aluminum silicate, bentonite, starch ether, hydroxypropyl methylcellulose Put the plain ether into the mortar mixing equipment and stir until uniform, the rotating speed of the mixing equipment is 24r / min, and the mixing time of the mixing equipment is 4 minutes to 7 minutes;

[0049] Step 2. Mixing of finished materials: Mix the pre-mixed materials with yellow sand, hydrophobic light aggregate, expanded vermiculite, and PP fiber until uniform. The speed of the mixing equipment is 24r / min, and the mixing time of the mixing equipment is less than 5 minutes.

Embodiment 1 to Embodiment 10

[0052] Embodiment 1 to Embodiment 10 are based on JG / T 291-2011 "Masonry and Plastering Dry-Mixed Mortar for Buildings" standard, and the machine spraying construction of Embodiment 1 to Embodiment 10 is based on JGJ-T105-2011 "Mechanical Spraying and Plastering". According to the standard construction of Construction Regulations, the test results are shown in the table below:

[0053]

[0054] In fact, it can be seen from the test results that the number of parts of yellow sand is 650 parts, the number of parts of hydrophobic redispersible latex powder is 3 parts, and the proportion of PP fiber is 0.7 parts. The overall quality of the plaster is better.

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Abstract

The invention discloses machine-spraying light-weight plastering mortar and a preparation method thereof. The machine-spraying light-weight plastering mortar is prepared from the following componentsin parts by mass: 130 to 200 parts of ordinary silicate cement, 60 to 150 parts of hydrophobic lightweight aggregate, 2 to 5 parts of hydrophobic re-dispersible latex powder, 1 to 2 parts of hydrophobic agent, 0.5 to 1 part of HPMC (hydroxypropyl methyl cellulose), 2 to 5 parts of polyvinyl alcohol, 0.5 to 1 part of xanthan gum, 1 to 2 parts of hydrate aluminum-magnesium silicate, 3 to 5 parts ofbentonite, 0.5 to 1 part of PP (polypropylene) fibers, 5 to 6 parts of expanded vermiculite, 10 to 50 parts of slaked lime, 600 to 700 parts of yellow sand, and 0.5 to 1 part of starch ether. The machine-spraying light-weight plastering mortar can be sprayed by a machine, so that the working efficiency of the wall plastering can be greatly increased and is five times or above of the manual construction speed, and the construction period is shortened. The problems that the traditional manual plastering construction efficiency is low, the consumption of materials is vast, dust pollution exists in the field, and the labor cost is increased can be solved; and the machine spraying construction quality is good, the safety performance is high, and no bubble or dropping can be produced.

Description

technical field [0001] The invention relates to the field of mortar, in particular to a machine-sprayed lightweight plastering mortar and a preparation method thereof. Background technique [0002] Mortar is a bonding substance used in building bricks. It is made by mixing a certain proportion of sand and cementing materials with water. It is also called mortar and plastering mortar. During use, plastering mortar is used to level the wall surface and cover the color of the wall itself. [0003] At present, most domestic plastering mortars are scraped manually, which is laborious and laborious, and it is difficult to ensure uniform construction strength, which brings the risk of hollowing and falling off of plastering mortars. With the increase of domestic labor costs and the aging of the workforce, it is becoming more and more important to improve labor efficiency. Indoor and outdoor plastering areas are large and require a lot of labor. Using mechanical spraying to plaste...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27C04B111/40C04B111/52
Inventor 张福恒单秀军
Owner 苏州大乘环保新材有限公司
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