CN102079650A - Light-burned dolomite light-weight wall partition board - Google Patents

Abstract

The invention relates to a light-burned dolomite lightweight partition wall board, which comprises the following components in parts by weight: 10-40 parts of light-burned dolomite powder, 8-55 parts of blending agent solution, and 5-85 parts of aggregate , 0.01 to 8 parts of water-resistant admixture, 1 to 50 parts of industrial waste, 1 to 30 parts of thickener, 1 to 16 layers of glass fiber mesh cloth, and 0.01 to 0.5 parts of water reducing agent. The lightweight partition wall panel of the present invention has the advantages of steam-free or autoclaved curing, rapid reaction and curing at room temperature, high strength, good water resistance, no moisture absorption and halogen return, no frost, frost resistance, sound insulation, heat insulation, heat preservation, flame retardancy, It has the advantages of extensive use of industrial waste residue and agricultural waste, resource and energy saving, and no discharge of three wastes. The invention has low production cost and good social and economic benefits, and is mainly used for non-load-bearing partition walls.

Description

A light-burned dolomite lightweight partition board

technical field

The invention relates to a lightweight partition wall board, in particular to a light-burned dolomite lightweight partition wall board.

Background technique

The reform of wall materials is an important part of protecting land resources, saving energy, comprehensively utilizing resources, and improving the environment. Promoting the use of new wall materials is one of the important ways to develop a low-carbon economy, realize building energy conservation, and achieve sustainable social development. In modern buildings, especially high-rise buildings with frame structures, most of the interior walls use lightweight profiles, such as wallboards processed from gypsum or perlite cement. However, gypsum boards have low strength and poor water resistance. The strength and stiffness of rock cement boards are poor. In order to improve the strength of lightweight interior partition wall materials, some room temperature solidified wall panels with magnesium oxychloride cement as the cementitious material system have begun to develop rapidly. For example: Chinese invention patent application 96122368.5 discloses a preparation method of a lightweight partition board, its components are composed of fly ash, magnesium oxide, magnesium chloride brine, ordinary cement and expanded foaming liquid, and PVC plastic pipes or Steel pipe reinforcement, high cost. Chinese invention patent ZL 200610009662.0 discloses a lightweight wallboard, the raw materials used are fly ash, magnesium oxide, magnesium chloride, lime or cement, gypsum, plant powder, glass wool, ferrous sulfate, oxalic acid, trisodium phosphate, hexametaphosphoric acid Composed of sodium and polyvinyl acetate, it is formed by tamping. Chinese invention patent ZL02134043.9 discloses a composite environmental protection firewall board, its components are light-burned magnesia, magnesium chloride brine, aluminate cement, talcum powder, hollow floating beads, expanded vermiculite, crop straw, sawdust , Fly ash, refractory agent, composite modifier. Chinese invention patent ZL00106052.X discloses a light-weight five-proof partition wall board, which is composed of bentonite, fly ash, herbal powder, magnesium oxide, magnesium chloride, acid, potassium permanganate, sodium hexametaphosphate, sulfurous acid Iron, composite nylon rope. Chinese invention patent ZL99118244.8 discloses a lightweight silicon-magnesium wallboard, which is made of magnesite cement, halogen flakes, fly ash, sawdust, gypsum, oxalic acid or phosphoric acid, ferric chloride or ferrous sulfate, triethanolamine, Composed of bamboo tendons.

In the aforementioned patented products, magnesium oxychloride cement composed of magnesium oxide and magnesium chloride solution is used as the cementing material. The sources of magnesium oxide are concentrated in Haicheng City, Dashiqiao City, Liaoning Province, and Laizhou City, Shandong Province. It is obtained by calcination. On the one hand, due to geographical limitations, it is difficult to promote and apply nationwide. On the other hand, it consumes a lot of precious magnesite resources in our country.

Contents of the invention

The object of the present invention is to provide a light-burned dolomite light-weight partition wall board with light weight, high strength, good water resistance, sound insulation, heat insulation, flame retardancy and environmental protection requirements.

The present invention is implemented by the following technical scheme, a light-burned dolomite lightweight partition wall board, which includes the following components by weight:

10-40 parts of lightly burned dolomite powder, 8-55 parts of blending agent solution,

5-85 parts of aggregate, 0.01-8 parts of water-resistant admixture,

It also includes the following raw materials in parts by weight: 1-50 parts of industrial waste residue.

It also includes the following raw materials in parts by weight: 1-30 parts of thickener.

It also includes raw materials in the following parts by weight: 1-16 layers of glass fiber mesh cloth.

It also includes the following raw materials in parts by weight: 0.01-0.5 parts of water reducing agent.

The lightly burned dolomite powder is a powder material containing active magnesium oxide and calcium carbonate after dolomite has been calcined.

The industrial waste slag is any one or a mixture of more than one of fly ash, slag, slag, steel slag or desulfurized gypsum.

The blending agent is any one or a mixture of magnesium chloride or magnesium sulfate.

The blending agent solution is any one or a mixture of the magnesium chloride solution with a Baume degree of 18-35°Bé or the magnesium sulfate solution with a Baume degree of 20-35°Bé.

The thickener is any one or a mixture of magnesium oxide or magnesium silicate.

The aggregate is any one of clay ceramsite and ceramsite, shale ceramsite and ceramsite, fly ash ceramsite and ceramsite, expanded perlite, expanded vermiculite, polystyrene foam particles, sawdust or crop straw One or more than one mixture.

The glass fiber mesh cloth is any one or a mixture of medium-alkali glass fiber mesh cloth or alkali-resistant glass fiber mesh cloth, and the number of layers of the glass fiber mesh cloth is 1 to 16 layers.

The water-resistant additive is phosphoric acid, sodium phosphate, potassium phosphate, ammonium phosphate, calcium phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, ammonium dihydrogen phosphate, calcium dihydrogen phosphate, meta Any one or a mixture of sodium phosphate, ferrous sulfate, gypsum or silica fume.

The water reducer is any one or a mixture of calcium lignosulfonate or naphthalene series high-efficiency water reducer.

The manufacturing method of the present invention comprises the steps in turn:

(1) Raw material measurement: lightly burned dolomite powder, industrial waste slag, blending agent solution, thickener, aggregate, water-resistant admixture, water reducing agent, according to the mixing ratio described in the first purpose of the present invention, respectively measurement;

(2) mixing and stirring: the measured raw materials are mixed evenly, and stirred to make a lightly burned dolomite mixture;

(3) Pouring molding: inject the lightly burned dolomite mixture into the mold to make a solid or hollow cross-sectional shape. During the pouring process, the glass fiber mesh cloth needs to be evenly spread on the upper and lower surfaces of the 3-20mm slurry middle;

(4) Natural maintenance: After the light-burned dolomite lightweight partition wall panels are cured, they are demoulded, stacked, and maintained under natural conditions until the performance meets the design requirements.

The advantages of the present invention are: 1. The light-burned dolomite light-weight partition wall board prepared by using light-burned dolomite powder as the main raw material has the advantages of normal temperature curing reaction, fast setting and hardening, high strength, heat insulation, sound insulation, flame retardancy, and frost resistance , no three wastes are discharged during the production process, which belongs to clean production, meets the requirements of new wall materials for building functions and building energy conservation, and has good social and economic benefits; 2. Adding water-resistant admixtures improves the water resistance of the product, It can be used as a wall material in a humid environment to expand the application range of the product; the water resistance is improved to prolong the service life of the product, and at the same time overcome the shortcomings of the product's moisture absorption, halogen return and frost; 3. Light-burned dolomite is light A large amount of industrial waste such as fly ash, slag, slag, steel slag, desulfurized gypsum, and agricultural waste such as sawdust and crop straw are used in the partition wall, which promotes the resource utilization and comprehensive utilization of solid waste, which can reduce environmental pollution and reduce 4. Use clay ceramsite and ceramsite, shale ceramsite and ceramsite, fly ash ceramsite and ceramsite, expanded perlite, expanded vermiculite, polystyrene foam Granules, sawdust, crop straw, etc. are used as aggregates, which can reduce the bulk density of the product, reduce transportation energy consumption, increase thermal resistance, and improve thermal insulation performance. It is suitable for building wall materials as non-load-bearing structures; using thickeners, glass Fiber mesh cloth and water reducing agent can greatly increase the strength, improve workability, better improve thermal insulation performance, and realize civilized construction. The light-burned dolomite lightweight partition wall board of the present invention is non-toxic, tasteless, non-radioactive, harmless to the human body, does not pollute the environment, and belongs to an environment-friendly new building wall material.

Detailed ways:

The light-burned dolomite lightweight partition wall panel and the manufacturing method of the present invention are further described below through examples, and these examples are only for the purpose of illustration, and do not limit the scope of the present invention. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed.

Embodiment 1: a light-burned dolomite lightweight partition wall board and its manufacture method, it comprises the following steps successively:

(1) Raw material measurement: lightly burned dolomite powder, industrial waste residue, blending agent solution, thickener, aggregate, water-resistant additive, and water-reducing agent were measured according to the mixing ratio of Examples 2-9;

(2) mixing and stirring: the measured raw materials are mixed evenly, and stirred to make a lightly burned dolomite mixture;

(3) Pouring molding: inject the lightly burned dolomite mixture into the mold to make a solid or hollow cross-sectional shape. During the pouring process, the glass fiber mesh cloth needs to be evenly spread on the upper and lower surfaces of the 3-20mm slurry middle;

(4) Natural maintenance: After the light-burned dolomite lightweight partition wall panels are cured, they are demoulded, stacked, and maintained under natural conditions until the performance meets the design requirements.

Embodiment 2-17 is as shown in table 1:

The preparation method of Example 1 was used in Examples 2-17, and the light-burned dolomite lightweight partition wall board was prepared according to the formula in Table 1.

Table 1: List of formulations of Examples 2-17

Example 18: The properties of the light-burned dolomite lightweight partition wall board prepared by the formula of Examples 2-17 were tested, and the results are shown in Table 2.

Table 2: Performance test table of the light-burned dolomite lightweight partition wall board prepared by the formula of Example 2-17

From the data in Table 2, it can be seen that the present invention has the characteristics of light weight, high strength, water resistance, frost resistance, impact resistance, and environmental protection requirements.

Claims (14)

1. a light dolomite light cellular partition board is characterized in that, it comprises the component of following weight part:

10 parts～40 parts in light dolomite powder, 8 parts～55 parts of blender solution,

5 parts～85 parts in aggregate, 0.01 part～8 parts of anti-water admixtures.

2. a kind of light dolomite light cellular partition board according to claim 1 is characterized in that it also includes the raw material of following parts by weight: 1～50 part of industrial residue.

3. a kind of light dolomite light cellular partition board according to claim 1 and 2 is characterized in that it also includes the raw material of following parts by weight: 1～30 part of thickening material.

4. according to any described a kind of light dolomite light cellular partition board of claim 1-3, it is characterized in that it also includes the raw material of following parts by weight: 1～16 layer of fiberglass gridding cloth.

5. according to any described a kind of light dolomite light cellular partition board of claim 1-4, it is characterized in that it also includes the raw material of following parts by weight: 0.01～0.5 part of water reducer.

6. a kind of light dolomite light cellular partition board according to claim 1 is characterized in that, described light dolomite powder is that rhombspar is through the powdered material that contains activated magnesia and lime carbonate after the calcining.

7. a kind of light dolomite light cellular partition board according to claim 2 is characterized in that, described industrial residue is any one or more than one the mixture in flyash, slag, slag, slag or the desulfurated plaster.

8. a kind of light dolomite light cellular partition board according to claim 1 is characterized in that, described blender is the mixture of any one or two kinds in magnesium chloride or the sal epsom.

9. a kind of light dolomite light cellular partition board according to claim 8, it is characterized in that described blender solution is that degree Beaume is the mixture of any one or two kinds in the magnesium chloride solution of 18～35 ° of B é or the Adlerika that degree Beaume is 20～35 ° of B é.

10. a kind of light dolomite light cellular partition board according to claim 3 is characterized in that, described thickening material is the mixture of any one or two kinds in magnesium oxide or the Magnesium Silicate q-agent.

11. a kind of light dolomite light cellular partition board according to claim 1, it is characterized in that described aggregate is any one or more than one the mixture in clay pottery sand and haydite, shale pottery sand and haydite, flyash ceramic sand and haydite, pearlstone, expanded vermiculite, polystyrene foam particles, sawdust or the agricultural crop straw.

12. a kind of light dolomite light cellular partition board according to claim 4, it is characterized in that, described fiberglass gridding cloth is the mixture of any one or two kinds in medium-alkali glass fibre grid cloth or the alkali resistant glass fiber grid cloth, and the number of plies of fiberglass gridding cloth is 1～16 layer.

13. a kind of light dolomite light cellular partition board according to claim 1, it is characterized in that described anti-water admixture is that concentration is any one or more than one the mixture in 35%～85% phosphoric acid, sodium phosphate, potassiumphosphate, ammonium phosphate, calcium phosphate, SODIUM PHOSPHATE, MONOBASIC, potassium primary phosphate, primary ammonium phosphate, monocalcium phosphate, sodium-metaphosphate, ferrous sulfate, gypsum or the silicon ash.

14. a kind of light dolomite light cellular partition board according to claim 5 is characterized in that, described water reducer is the mixture of any one or two kinds in wooden calcium sulfonate or the naphthalene series high-efficiency water-reducing agent.