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Environmentally-friendly machine spray mortar, its production method and its use method

An environment-friendly, machine-sprayed mortar technology, applied in the field of building materials, can solve the problems of unpopularization of ready-mixed mortar machine-sprayed industrial construction, high price of powder materials, poor fluidity of ready-mixed mortar, etc., to achieve convenient continuous mechanized operation, The loss of work performance index is less, and the effect of promoting the development of circular economy

Inactive Publication Date: 2012-10-17
上海德滨环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some cities in our country have realized the industrialized production of ready-mixed mortar, the machine-sprayed industrialized construction of ready-mixed mortar has not been popularized.
The main reason is that the existing ready-mixed mortar has poor fluidity and viscosity, and is not suitable for machine spraying.
[0005] The main reason for the poor viscosity of the existing ready-mixed mortar is that the amount of powder used is small, and the amount of sand used is relatively large and the sand is relatively coarse. The root cause is that the price of powder materials is relatively high
Moreover, due to less and less river sand, most of the sand used in some areas is machine-made sand. Machine-made sand is usually produced by impact crushing, with many needles and flakes, resulting in poor mortar fluidity.

Method used

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  • Environmentally-friendly machine spray mortar, its production method and its use method
  • Environmentally-friendly machine spray mortar, its production method and its use method
  • Environmentally-friendly machine spray mortar, its production method and its use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 , Preparation of recycled powder

[0045] Prepare the regenerated powder of the present invention according to the following steps:

[0046] A. Dispose of construction waste through pretreatment equipment to obtain materials with a particle size of 5mm≤particle size≤50mm;

[0047] Specifically, the construction waste is first roughly crushed, and the construction waste is roughly crushed to a material with a particle size of about 100mm by using extrusion crushing equipment or impact crushing equipment; then light combustible materials such as plastics, fabrics, and wood in the construction waste are manually or mechanical sorting and removal; then use impact crushing equipment (impact crushing or coarse hammer crushing) to achieve medium crushing of construction waste coarse materials; at the same time, due to the low strength of the soil in construction waste, in the high-speed rotating crushing equipment , beating, grinding, rubbing and other processes, ...

Embodiment 2

[0050] Example 2 , Preparation of environment-friendly machine-sprayed plaster

[0051] According to the formula shown in Table 1, the recycled micropowder is used as an admixture to produce mortar, and the components are mixed and stirred evenly according to the weight ratio (%) to obtain an environmentally friendly machine-blasted mortar. Regenerated micropowder can replace part of cement or all fly ash, and can produce environment-friendly machine sprayed plastering mortar with strength grades of M5, M10, M15 and M20.

[0052] Table 1 An environment-friendly machine-sprayed plastering mortar weight ratio (%)

[0053]

[0054] According to the above experimental data of the environment-friendly machine-sprayed plastering mortar, the environment-friendly machine-sprayed plastering mortar adopts 1-1#, 1-2#, 1-3#, 1-4#, 1-5 #, 1-6# and 1-7#, the 28d compressive strength reaches more than 127% of the requirement, the 14d tensile bond strength reaches more than 175% of the re...

Embodiment 3

[0056] Example 3 , Preparation of environment-friendly machine-sprayed desulfurization gypsum plaster mortar

[0057] According to the formula shown in Table 2, the recycled differential is used as an admixture to produce mortar, and each component is mixed and stirred evenly according to the weight ratio (%) to obtain an environmentally friendly machine-blasted mortar. Regenerated micropowder can replace part of cement or all fly ash, and can produce environment-friendly machine-sprayed desulfurization gypsum plaster mortar.

[0058] Table 2 An environment-friendly machine-sprayed desulfurization gypsum plaster mortar Weight ratio (%)

[0059]

[0060]

[0061] According to the above experimental data of the environment-friendly machine-sprayed desulfurization gypsum plaster mortar, the environment-friendly machine-sprayed desulfurization gypsum plaster mortar adopts the preparation of 2-1#, 2-2#, 2-3# and 2-4# The proportion and 3D compressive strength all reach mor...

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Abstract

The invention discloses an environmentally-friendly machine spray mortar in the technical field of building material, its production method and its use method. The formula of the environmentally-friendly machine spray mortar is that the mortar comprises 0-20% of cement, 6-40% of two-component regenerated micropowder, 0-34.5% of regenerated fine aggregates, 0-50% of natural sand, 0-2.5% of thickening powder, 0-1% of a polypropylene fiber, 0-1% of an additive, 0-60% of desulfurized gypsum, 0-38% of micro-expansion beads, and the balance water. The mortar of the invention has the advantages of low cost, quality guarantee, realization of high added value utilization of building garbage, promotion of the circular economy development of the building industry, and tax preference enjoyment.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environment-friendly machine-sprayed mortar, its production method and its use method. Background technique [0002] Mortar is a widely used building material, and it is also one of the main types of building materials. The annual demand in the country is about 1 billion tons. Mortar usually includes masonry mortar, plastering mortar, floor mortar, and also includes some special mortars, such as thermal insulation mortar, self-leveling mortar, etc. Usually mortar is composed of cementitious materials, fine aggregate, polymer additives, admixtures and water. [0003] Ready-mixed mortar refers to various mortar mixtures produced by specialized manufacturers and used in construction projects, or commercial mortar. Following the mandatory promotion of ready-mixed concrete, our country began to force the promotion of ready-mixed mortar. 127 large and medium-sized citie...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/14
Inventor 刘琼陆沈磊王晓波张平杨德志
Owner 上海德滨环保科技有限公司
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