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Mortar shortening coagulation time and preparation method thereof

A technology of setting time and mortar, applied in the field of mortar, can solve the problems of inconvenient construction, delaying the construction process, long setting time of mortar, etc., and achieve the effect of reducing setting time, improving work efficiency and good application prospect.

Inactive Publication Date: 2018-08-17
肥西县碧涛建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing mortar has a long setting time, which delays the construction process and causes inconvenience in construction. The Chinese patent document (publication number: CN102030493B) discloses a material for improving the setting time and operability of mortar and its use method. Its raw material composition and in every m 3 The dosage in the mortar is as follows: 15-20kg of calcium-based bentonite; 10-15kg of sodium-based bentonite; 1.2-1.5kg of calcium lignosulfonate; 0.5-1.0kg of sodium tripolyphosphate. The mortar has a long setting time and delays the construction process

Method used

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  • Mortar shortening coagulation time and preparation method thereof

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Effect test

Embodiment 1

[0030] A kind of mortar that can shorten setting time of the present embodiment comprises the raw material of following weight portion:

[0031] 38 parts of Portland cement, 34 parts of quartz sand, 18 parts of latex powder, 18 parts of cellulose diacetate, 16 parts of sodium bentonite treated with calcium chloride, 6 parts of polyacrylamide, 4 parts of coagulation aid, aluminum sulfate mixed Miscellaneous fly ash 2 parts.

[0032] The preparation method of calcium chloride-treated sodium-based bentonite in this embodiment is to grind the sodium-based bentonite, pass through a 20-mesh sieve, and then add it to a calcium chloride solution with a mass fraction of 92%, and mix and stir at a stirring speed of 155 r / min , followed by suction filtration, sent to an oven for drying, and then ground to powder, that is, calcium chloride-treated sodium-based bentonite.

[0033] The mass ratio of calcium chloride and sodium bentonite in this embodiment is 3:10.

[0034] The coagulation...

Embodiment 2

[0044] A kind of mortar that can shorten setting time of the present embodiment comprises the raw material of following weight portion:

[0045] 44 parts of Portland cement, 34 parts of quartz sand, 24 parts of latex powder, 22 parts of cellulose diacetate, 20 parts of sodium bentonite treated with calcium chloride, 10 parts of polyacrylamide, 10 parts of coagulation aid, aluminum sulfate mixed Miscellaneous fly ash 5 parts.

[0046] The preparation method of the calcium chloride-treated sodium-based bentonite in this embodiment is to grind the sodium-based bentonite, pass through a 20-mesh sieve, and then add it to a calcium chloride solution with a mass fraction of 96%, and mix and stir at a stirring speed of 175r / min , followed by suction filtration, sent to an oven for drying, and then ground to powder, that is, calcium chloride-treated sodium-based bentonite.

[0047] The mass ratio of calcium chloride and sodium bentonite in this embodiment is 3:10.

[0048] The coagul...

Embodiment 3

[0058] A kind of mortar that can shorten setting time of the present embodiment comprises the raw material of following weight portion:

[0059] 41 parts of Portland cement, 32 parts of quartz sand, 21 parts of latex powder, 20 parts of cellulose diacetate, 18 parts of sodium bentonite treated with calcium chloride, 8 parts of polyacrylamide, 7 parts of coagulation aid, aluminum sulfate mixed Miscellaneous fly ash 3.5 parts.

[0060] The preparation method of calcium chloride-treated sodium-based bentonite in this embodiment is to grind the sodium-based bentonite, pass through a 20-mesh sieve, and then add it to a calcium chloride solution with a mass fraction of 94%, and mix and stir at a stirring speed of 160r / min , followed by suction filtration, sent to an oven for drying, and then ground to powder, that is, calcium chloride-treated sodium-based bentonite.

[0061] The mass ratio of calcium chloride and sodium bentonite in this embodiment is 3:10.

[0062] The coagulatio...

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Abstract

The invention discloses a mortar shortening coagulation time. The mortar is prepared from the following raw materials in parts by weight: 38-44 parts of Portland cement, 30-34 parts of quartz sand, 18-24 parts of emulsion powder, 18-22 part of cellulose diacetate, 16-20 parts of calcium chloride treated sodium-based bentonite, 6-10 parts of polyacrylamide, 4-10 parts of coagulating aid, and 2-5 parts of aluminum sulfate doped fly ash. The mortar shortening coagulation time can coagulate in a shorter time but maintain the strength, thereby improving working efficiency and having higher use value and good application prospect.

Description

technical field [0001] The invention relates to the technical field of mortar, in particular to a mortar capable of shortening the setting time and a preparation method thereof. Background technique [0002] Mortar is a bonding substance used in building bricks. It is composed of a certain proportion of sand and cementing materials and water. It is made with water in a certain ratio, and is generally used for masonry and plastering layers that do not require high strength and are not subject to moisture: cement mortar, made of cement, sand and water in a certain ratio, is generally used in humid environments or Masonry, wall or ground in water; mixed mortar, made by adding appropriate admixtures such as fly ash, diatomaceous earth, etc. Workability, commonly used mixed mortars include cement lime mortar, cement clay mortar and lime clay mortar. [0003] The existing mortar has a long setting time, which delays the construction process and causes inconvenience in constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/06C04B2103/0045C04B24/383C04B14/104C04B24/2652C04B22/124C04B24/305C04B24/2676C04B14/14C04B14/022C04B18/08C04B22/148
Inventor 俞克波
Owner 肥西县碧涛建材有限公司
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