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Dry-mixed mortar and preparation method thereof

A dry-mixed mortar and quartz sand technology, which is applied in clay preparation equipment, chemical instruments and methods, cement mixing equipment, etc., can solve the problems of poor water retention effect of dry-mixed mortar, flying dust of raw materials, poor crack resistance, etc., and achieve water retention Strong effect, good crack resistance, fast discharge effect

Inactive Publication Date: 2021-05-25
温州德尔福节能科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of dry-mixed mortar and its preparation method, to solve the dry-mixed mortar prepared by most of the dry-mixed mortar preparation methods proposed in the above-mentioned background technology is poor in crack resistance, and the prepared dry-mixed mortar The water retention effect is poor, and when preparing dry-mixed mortar, when mixing raw materials, it is easy to cause the flying of raw material dust, and it is not convenient for rapid discharge.

Method used

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  • Dry-mixed mortar and preparation method thereof
  • Dry-mixed mortar and preparation method thereof

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preparation example Construction

[0025] A kind of preparation method of dry-mixed mortar, the preparation of described dry-mixed mortar comprises the following steps:

[0026] Step 1: Add ordinary Portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder to the three-pass dryer for drying treatment, and then add dry powder Stir evenly in a mixer;

[0027] Step 2: Add chopped carbon fiber and polymer to the mixture in Step 1, and stir evenly;

[0028] Step 3: Add etherified starch, thickening powder and polycarboxylate superplasticizer into a V-type high-efficiency mixer, and stir evenly;

[0029] Step 4: Add the mixture in step 3 to the mixture in step 2, stir evenly, measure and pack.

[0030] The present invention is one step closer, and the parts by weight of ordinary Portland cement, fly ash, diabase powder, quartz sand, ilmenite ore powder, sepiolite powder and citric acid slag powder in said step 1 are respectively : 95 parts of ordinary port...

Embodiment

[0038] Step 1: Take 95 parts of ordinary Portland cement, 45 parts of fly ash, 8 parts of diabase powder, 780 parts of quartz sand, 5 parts of ilmenite ore powder, 6 parts of sepiolite powder and 12 parts of citric acid slag powder, Add it to the three-pass dryer for drying treatment, and then add it to the dry powder mixer for uniform mixing. Step 2: Add 3 parts of chopped carbon fiber and 20 parts of polymer to the mixture in Step 1, and stir evenly. Step 3: Add 0.5 parts of etherified starch, 5 parts of thickening powder, and 1.2 parts of polycarboxylate superplasticizer into a V-type high-efficiency mixer, and stir evenly. Step 4: Add the mixture between step 3 to the mixture in step 2 , stir evenly, measure and pack;

[0039] Among them, when ordinary Portland cement, fly ash, diabase powder, quartz sand, ilmenite powder, sepiolite powder and citric acid slag powder are uniformly mixed through a dry powder mixer, the materials are first put into the feeding In the box 3,...

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Abstract

The invention discloses dry-mixed mortar. The dry-mixed mortar comprises ordinary Portland cement, coal ash, diabase powder, quartz sand, titanium iron ore powder, sepiolite powder, short carbon fibers, citric acid residue powder, a polymer, a polycarboxylate superplasticizer, etherified starch and thickening powder. Specifically, the dry-mixed mortar comprises the following components in parts by weight: 90 to 110 parts of the ordinary Portland cement, 30 to 50 parts of the fly ash, 8 to 10 parts of the diabase powder, 720 to 840 parts of the quartz sand, 3 to 5 parts of the titanium iron ore powder, 6 to 8 parts of the sepiolite powder, 2 to 3 parts of the short carbon fibers, 12 to 15 parts of the citric acid residue powder, 10 to 30 parts of the polymer, 0.5 to 1.0 part of the polycarboxylate superplasticizer, 0.3 to 0.5 part of the etherified starch and 3 to 5 parts of the thickening powder. The prepared dry-mixed mortar is relatively good in crack resistance and relatively strong in water retention effect; and when the dry-mixed mortar is being prepared and the raw materials are stirred, flying of raw material dust cannot be caused, and rapid discharging is facilitated.

Description

technical field [0001] The invention relates to the related technical field of dry-mixed mortar, in particular to a dry-mixed mortar and a preparation method thereof. Background technique [0002] Mortar is one of the commonly used materials in construction engineering. Among them, dry powder mortar refers to aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers) that have been dried and screened in a certain proportion. A kind of granule or powder formed by physical mixing, which is used in the construction of construction projects. However, there are still certain defects in the existing dry-mixed mortar and the preparation method of dry-mixed mortar on the market, such as: [0003] The dry-mixed mortar prepared by the existing dry-mixed mortar preparation method has poor crack resistance, and the dry-mixed mortar prepared by the general dry-mixed mortar preparation method has poor water retention effect, and wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04B28C5/08B28C7/10B28C7/16C04B111/34
CPCC04B28/04B28C5/08B28C7/10B28C7/162C04B2111/343C04B18/08C04B14/14C04B14/06C04B14/042C04B14/386C04B14/02C04B18/04C04B2103/44C04B24/38C04B2103/0045C04B2103/302
Inventor 张崇安张崇龙杨林素
Owner 温州德尔福节能科技股份有限公司
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