CN103979848A - Heat insulation concrete and preparation method thereof - Google Patents

Abstract

The invention discloses a heat insulation concrete. The heat insulation concrete is prepared by using the following raw materials, by weight, 100-120 parts of cement, 95-105 parts of river sand, 18-25 parts of lignocelluloses, 6-9 parts of tartaric acid, 4-7 parts of sodium silicate, 90-110 parts of meerschaum, 100-120 parts of bentonite, 55-70 parts of ceramsite, 35-50 parts of rock wool leftover, 80-100 parts of gangue waste, 45-60 parts of waste and old clothes, 3-6 parts of an assistant and a proper amount of water. The concrete prepared in the invention has a good heat insulation performance, has a compressive strength within 28 days of 30Mpa or more, and also has waterproof and anticorrosive properties.

Description

A kind of heat insulating type concrete and preparation method thereof

 

Technical field

The present invention relates to building concrete technical field, be specifically related to a kind of heat insulating type concrete and preparation method thereof.

Background technology

Concrete is normally made gelling material with cement, sand, masonry gather materials, coordinate by a certain percentage with water (can contain admixture and adulterant), through stirring and cement concrete, also claim normal concrete, it has advantages of that easy-formation, energy consumption are low, good endurance, low price and be combined and can be made into various support mechanisms with steel, is contemporary most widely used material of construction, and the development of human society is played a very important role

The consumption that gathers materials that one of must addition material as concrete is very large, and natural aggregate overexploitation, makes it quality and also cannot meet the demand that existing concrete is produced, and concrete also exists intensity difference at present, frost resistance is low, dry shrinkage is large, and the deficiencies such as cracking easily occur.Therefore, develop various artificial aggregates and find suitable substitute material, thereby develop a kind of high strength, frost resistance is good, dry shrinkage is little, the new concrete of not easy to crack, the antibacterial function such as heat-resisting, become this area and be badly in need of the technical barrier solving to meet the needs of high quality construction project.

In recent years, along with growth in the living standard and social progress, the various solid wastes that people's daily life and Industrial processes produce and urban construction are removed and are remake the solid waste brought etc. and perplexing always resident's living environment, and the processing of the waste and old clothes that more particularly can not continue to wear is a difficult problem always.The present invention adds in concrete solid waste as starting material, has realized the cyclic utilization of waste, has reduced the pollution to environment, meets strategy of sustainable development requirement.

Summary of the invention

Object of the present invention is just to provide a kind of heat insulating type concrete and preparation method thereof, to overcome the deficiencies in the prior art.

The object of the present invention is achieved like this:

A kind of heat insulating type concrete, it is characterized in that, made by the raw material of following weight part: cement 100-120, river sand 95-105, lignocellulose 18-25, tartrate 6-9, water glass 4-7, sepiolite 90-110, wilkinite 100-120, haydite 55-70, rock wool tankage 35-50, coal gangue waste residue 80-100, waste and old clothes 45-60, auxiliary agent 3-6, suitable quantity of water.

Described auxiliary agent is made up of following raw materials in part by weight: kaolin 8-13, magnesium oxide 6-9, oleum lini 1-3, water glass 0.2-0.5, polyphenylene oxide 0.02-0.04, wheat stalk 9-12, Shrubalthea Bark 8-10, pitch 7-9, aluminium powder 0.01-0.03, Sudan Gum-arabic 2-4, sodium hydroxide 1.3-2.5, its preparation method is that each crushing material is mixed, add suitable quantity of water and stir 30-40 minute, granulation, balling-up particle diameter, at 2-5mm, is dried and be get final product.

The preparation method of described a kind of heat insulating type concrete, is characterized in that comprising the following steps:

(1) waste and old clothes is cleaned up after accessories such as removing button, slide fastener, tear and make the fiber of being entangled with of bulk loosen and become flocculence, make the long fiber in 5-10mm left and right for subsequent use;

(2) coal gangue waste residue, wilkinite one are arised from 650-820 DEG C and calcine after 3-6 hour and take out and pulverize, add lignocellulose, tartrate, rock wool tankage and suitable quantity of water to stir 30-40 minute, mix, granulation, balling-up particle diameter is at 5-8mm;

(3) sepiolite, haydite are put into 1 ‰ iron(ic) chloride and 0.5 ‰ calcium chloride composite solutions flood 10-12 hour, be pulverized and mixed evenly;

(4) step (1), (2), (3) reaction mass and other leftover materials are added to suitable quantity of water stirring mixes and get final product for 5-8 minute.

The present invention has following beneficial effect: the concrete that the present invention utilizes rock wool tankage and coal gangue waste residue to make has good heat-insulating property, and there is ultimate compression strength >=30Mpa in 28 days, also there is the advantages such as waterproof is corrosion-resistant simultaneously, relatively comprehensive, its various aspects of performance of the concrete that the present invention makes is all higher than normal concrete performance index, is adapted to road, engineering first-aid repair etc. and building or the construction of built engineering.

Embodiment

Described a kind of heat insulating type concrete, it is characterized in that, made by the raw material of following weight part: cement 112, river sand 97, lignocellulose 18, tartrate 6, water glass 4, sepiolite 90, wilkinite 100, haydite 57, rock wool tankage 35, coal gangue waste residue 81, waste and old clothes 46, auxiliary agent 4, suitable quantity of water.

Described auxiliary agent is made up of following raw materials in part by weight: kaolin 9.5, magnesium oxide 6, oleum lini 1.3, water glass 0.2, polyphenylene oxide 0.02, wheat stalk 9, Shrubalthea Bark 8, pitch 7, aluminium powder 0.01, Sudan Gum-arabic 2, sodium hydroxide 1.3, its preparation method is that each crushing material is mixed, add suitable quantity of water and stir 30-40 minute, granulation, balling-up particle diameter, at 2-5mm, is dried and be get final product.

Making method comprises the following steps:

(1) waste and old clothes is cleaned up after accessories such as removing button, slide fastener, tear and make the fiber of being entangled with of bulk loosen and become flocculence, make the long fiber in 5-10mm left and right for subsequent use;

(2) coal gangue waste residue, wilkinite one are arised from 650-820 DEG C and calcine after 3-6 hour and take out and pulverize, add lignocellulose, tartrate, rock wool tankage and suitable quantity of water to stir 30-40 minute, mix, granulation, balling-up particle diameter is at 5-8mm;

(3) sepiolite, haydite are put into 1 ‰ iron(ic) chloride and 0.5 ‰ calcium chloride composite solutions flood 10-12 hour, be pulverized and mixed evenly;

(4) step (1), (2), (3) reaction mass and other leftover materials are added to suitable quantity of water stirring mixes and get final product for 5-8 minute.

Process by above-described embodiment the concrete technical indicator obtaining as follows:

(1) thermal conductivity (25 ± 2 DEG C of medial temperatures): 0.071W/ (mk);

(2) ultimate compression strength (28d): 37.56MPa;

(3) workability is good, and workability and intensity meet construction requirement;

(4) tensile splitting strength (28d): 4.15 MPa;

(5) high temperature resistant and metope tight bond, seamless.

Claims (2)

1. a heat insulating type concrete, it is characterized in that, made by the raw material of following weight part: cement 100-120, river sand 95-105, lignocellulose 18-25, tartrate 6-9, water glass 4-7, sepiolite 90-110, wilkinite 100-120, haydite 55-70, rock wool tankage 35-50, coal gangue waste residue 80-100, waste and old clothes 45-60, auxiliary agent 3-6, suitable quantity of water; Described auxiliary agent is made up of following raw materials in part by weight: kaolin 8-13, magnesium oxide 6-9, oleum lini 1-3, water glass 0.2-0.5, polyphenylene oxide 0.02-0.04, wheat stalk 9-12, Shrubalthea Bark 8-10, pitch 7-9, aluminium powder 0.01-0.03, Sudan Gum-arabic 2-4, sodium hydroxide 1.3-2.5, its preparation method is that each crushing material is mixed, add suitable quantity of water and stir 30-40 minute, granulation, balling-up particle diameter, at 2-5mm, is dried and be get final product.

2. the making method of a kind of heat insulating type concrete according to claim 1, is characterized in that comprising the following steps:

(1) waste and old clothes is cleaned up after accessories such as removing button, slide fastener, tear and make the fiber of being entangled with of bulk loosen and become flocculence, make the long fiber in 5-10mm left and right for subsequent use;

(2) coal gangue waste residue, wilkinite one are arised from 650-820 DEG C and calcine after 3-6 hour and take out and pulverize, add lignocellulose, tartrate, rock wool tankage and suitable quantity of water to stir 30-40 minute, mix, granulation, balling-up particle diameter is at 5-8mm;

(3) sepiolite, haydite are put into 1 ‰ iron(ic) chloride and 0.5 ‰ calcium chloride composite solutions flood 10-12 hour, be pulverized and mixed evenly;

(4) step (1), (2), (3) reaction mass and other leftover materials are added to suitable quantity of water stirring mixes and get final product for 5-8 minute.