Lightweight high-strength composite block and production method thereof
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A production method and composite base technology, applied in light-weight high-strength composite base blocks and their production fields, can solve problems such as poor impermeability and frost resistance, water resistance, easy softening, etc., and achieve low strength, enhanced strength, and frost resistance. Good results
Inactive Publication Date: 2012-05-02
CHANGSHA XIHUA THERMAL INSULATION MATERIALS +1
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The bulk density of gypsum blocks is light (normally 1000kg / m 3 ), thermal insulation, sound insulation, and fire resistance are superior, but its strength is low (generally about 1-3Mpa), not water-resistant, easy to soften when exposed to water, poor impermeability and frost resistance
If the hollow slabs are made of gypsum, in addition to the above defects, there will also be serious defects that are easy to crack
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Embodiment 1
[0013] Embodiment one: this is a kind of dry bulk density 1100kg / m3, compressive strength is the example of the high-strength composite matrix building block of 10.25Mpa, and its raw material composition and production method are as follows:
[0014] Raw materials: 80 parts of building gypsum powder, 10 parts of cement, 20 parts of fly ash, 1 part of borax.
[0015] Proceed as follows during production:
[0016] (1) Use 1100 kilograms of raw materials in the volume of each cubic meter, add water and fully stir into a slurry, stop adding water until the weight of the slurry reaches 1600Kg per cubic meter;
[0017] (2) Casting mold: pour the slurry obtained in step (2) into the steel mold, and demould after curing;
[0018] (3) Curing at 50-95°C for 10-12 hours to obtain a dry bulk density of 1100kg / m 3 , a high-strength composite base block with a compressive strength of 10.75Mpa.
[0019] The maintenance process is divided into the early stage, the middle stage and the late...
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Abstract
The invention discloses a lightweight high-strength composite block and a production method thereof. The block comprises the following raw materials, by weight, 10-80 parts of building gesso, 10-30 parts of Portland cement, 10-40 parts of coal ash, and 0.1-1.5 parts of borax. The production method of the block comprises the following steps: 1, preparing the raw materials according to above weightparts; 2, using the raw materials according to a case that 500-1100kg of the raw materials are used in 1m<3> of a container, and adding water under fully stirring to obtain a slip until the weight of1m<3> of the slip reaches 1.6-1.65t; and 3, casting the slip into a mold, curing, demolding, and maintaining for 10-12h at 50-95DEG C. The block of the invention has the advantages of good sound and thermal insulation performance, good processability after molding, high strength, good water resistance, good freeze resistance and good permeability resistance.
Description
technical field [0001] The invention relates to a lightweight high-strength composite matrix block and a production method thereof. Background technique [0002] The lightweight blocks involved in my country's current standards mainly include: aerated concrete blocks, foam concrete blocks, gypsum blocks, gypsum hollow slabs, etc. [0003] The aerated concrete block is made of quicklime, fly ash, cement, river sand, aluminum powder, gypsum, etc., mixed according to a certain proportion, mixed with water, foamed, cut into pieces, and steamed at high temperature, after a certain period of time. Natural conservation before leaving the factory. Air-entrained concrete blocks have light bulk density, high strength, good thermal insulation performance, and fast brick forming speed. They are currently the main light-weight blocks popular in the market. However, its water absorption rate is high, its impermeability is poor, its perforation is easy to break, and its processing perfor...
Claims
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