Cementless salt storage mortar composition and preparation method thereof

A composite and cement-free technology, applied in the field of building materials, can solve problems such as difficult to accurately find the source, damage the surface layer, and limited effect, achieve important market value and social value, avoid accelerated weathering, and have beautiful appearance

Inactive Publication Date: 2018-05-11
浙江德赛堡建筑材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the source of water vapor is found, "blocking" is an effective method, but in many cases, it is difficult to accurately find the source of water vapor, and secondly, after the source is blocked, the damp wall will be pan-alkaline during the drying process and damage the surface layer; "blocking" sometimes It can only prevent water vapor from entering a limited area, and often makes the adjacent non-humid area damp, with limited effect

Method used

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  • Cementless salt storage mortar composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A cement-free salt storage mortar composition is composed of the following components according to weight percentage: 50% of aggregate, 20% of lightweight aggregate, 29% of natural hydraulic lime, and 1% of auxiliary agent.

[0028] The aggregate is limestone; the particle size of the aggregate is between 0.01-0.20mm.

[0029] The lightweight aggregate is perlite particles.

[0030] The natural hydraulic lime is the natural hydraulic lime specified in the European standard EN459-1 2010; the natural hydraulic lime is NHL2 produced by German HESSLER KALKWERKEGMBN company.

[0031] The auxiliary agent includes cellulose ether and wood fiber, and the weight percentage content of cellulose ether and wood fiber in the described cement-free salt storage mortar composition is respectively: 0.5% of cellulose ether, 0.5% of wood fiber; The plain ether is cellulose ether M4025 from Hercules Temple Company; the wood fiber is wood fiber ARBOCEL FD40 from JRS Company of Germany.

...

Embodiment 2

[0040] A cement-free salt storage mortar composition is composed of the following components according to weight percentage: 65% of aggregate, 10% of light aggregate, 23% of natural hydraulic lime, and 2% of auxiliary agent.

[0041] The aggregate is quartz sand; the particle size of the aggregate is between 0.01-0.20mm.

[0042] The lightweight aggregate is perlite particles.

[0043] The natural hydraulic lime is the natural hydraulic lime specified in the European standard EN459-1 2010; the natural hydraulic lime is NHL5 produced by the French company St Astier.

[0044] The auxiliary agent includes cellulose ether and wood fiber, and the weight percent content of cellulose ether and wood fiber in the described cement-free salt storage mortar composition is respectively: 1.0% of cellulose ether, 1.0% of wood fiber; The plain ether is cellulose ether M4025 from Hercules Temple Company; the wood fiber is wood fiber ARBOCEL FD40 from JRS Company of Germany.

[0045] In the p...

Embodiment 3

[0053] A cementless salt storage mortar composition is composed of the following components according to weight percentage: 60% of aggregate, 15% of light aggregate, 23.5% of natural hydraulic lime, and 1.5% of auxiliary agent.

[0054] The aggregate is a mixture of limestone and quartz sand at a weight ratio of 1:1; the particle size of the aggregate is between 0.01-0.20mm.

[0055] The lightweight aggregate is perlite particles.

[0056] The natural hydraulic lime is the natural hydraulic lime specified in the European standard EN459-1 2010; the natural hydraulic lime is NHL2 produced by German HESSLER KALKWERKEGMBN company.

[0057] The auxiliary agent includes cellulose ether and wood fiber, and the weight percent content of cellulose ether and wood fiber in the described cement-free salt storage mortar composition is respectively: 0.5% of cellulose ether, 1.0% of wood fiber; The plain ether is cellulose ether M4025 from Hercules Temple Company; the wood fiber is wood fib...

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Abstract

The invention discloses a cementless salt storage mortar composition and a preparation method thereof. The composition is prepared from, by weight, 50-65% of aggregates, 10-20% of lightweight aggregates, 20-35% of natural hydraulic lime and 1-2% of assistant. The invention further discloses the preparation method of the cementless salt storage mortar composition. According to the cementless salt storage mortar composition, the composition is high in porosity and excellent in water absorption and permeability balance, so that salt in a wall body can be absorbed to the interior of a material toprevent a decoration layer of the wall body from being destructed by the salt, weathering acceleration of the facade of the wall body caused by the fact that the salt residual on the facade of the wall body is prevented, attractive appearances of historical buildings and industrial heritage buildings are guaranteed, more comprehensive protection is provided for the historical buildings and the industrial heritage buildings, and the cementless salt storage mortar composition has significant market and social value.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a cement-free salt-storage mortar composition and a preparation method thereof, which are applied to the protection of damp efflorescent parts of existing buildings or historical buildings and masonry cultural relics buildings. Background technique [0002] The historical buildings in the existing buildings refer to the buildings that have a certain protection value and can reflect the historical style and local characteristics determined and announced by the people's government of the city or county. The existing buildings in stock in my country are huge in area, diverse in types and complex, and the existing buildings are affected by damp or pan-alkali to varying degrees during use and natural aging process, which not only affects the value of the existing buildings, but also affects their use, and in severe cases will affect The health of occupants and solving the da...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B111/72
CPCC04B28/12C04B2111/00482C04B2111/00956C04B2111/72C04B2201/10C04B2201/50C04B14/28C04B14/18C04B18/26C04B24/383C04B14/06
Inventor 张德兵
Owner 浙江德赛堡建筑材料科技有限公司
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