CN105110748A - Autoclaved aerated brick - Google Patents

Abstract

The invention discloses an autoclaved aerated brick. The autoclaved aerated brick is prepared from, by weight, 62% of coal ash, 4% of modified bentonite, 10% of rock powder, 12% of quick lime, 6% of cement, 0.5% of aluminum powder and 5.5% of plaster water. Compared with an existing autoclaved aerated brick preparing technology, the production technology is simple, cost is low, a prepared autoclaved aerated concrete block is low in weight, high in strength, good in heat preservation and heat insulation performance, resistant to fire, good in sound absorption and noise reduction, capable of saving energy, environmentally friendly and capable of meeting the needs of building engineering and the demand for environmental friendliness. The modified bentonite is added, the stability of slurry is further improved, the physical mechanical performance of the finished brick is greatly improved, the impact strength is greatly improved, and the cracking rate of the brick is greatly reduced.

Description

A kind of steam pressurized brick

Technical field

The present invention relates to material of construction and make field, particularly relate to a kind of steam pressurized brick.

Background technology

Gas concrete brick because of there is lightweight, heat-insulating property and sound-absorbing effect good and have the plurality of advantages such as some strength, become substitute traditional solid clay brick and obtain extensive utilization gradually.Gas concrete is the New Building Materials of a kind of lightweight, high strength, have that quality is light, intensity is high, good heat insulation, can to process and the advantage such as flame resistance, sound-absorbing, the building block of different size can be made, be widely used in the load-bearing of industry and covil construction or go along with sb. to guard him interstitital texture, be subject to the attention of countries in the world construction industry, become a kind of material of construction that many countries widely popularize and develop.

Summary of the invention

The object of this invention is to provide a kind of steam pressurized brick, be achieved through the following technical solutions:

A kind of steam pressurized brick, is made up of following composition: flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5% by weight percentage.

Further, described modified alta-mud is: by wilkinite grind into powder, is stirred in the clear water of its 8 times of weight parts, after mixing, add para-amino benzoic acid and lpsilon, temperature is adjusted to 65-75 DEG C, react after 1-2 hour, dry, obtain modified alta-mud; Described benzaminic acid and lpsilon weight and count 8 parts by weight, benzaminic acid and lpsilon adding proportion are 3:2.

Further, described Rock Powder is rosin rock dust by the mixing of 3:1 weight ratio and the mixture of olive rock dust, and described fat rock dust and peridotites powder footpath are 50-60 order.

A making method for steam pressurized brick, comprising:

1) flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5% is taken by weight percentage;

2) by unslaked lime grinding of ball grinder powdered and Rock Powder, flyash, modified alta-mud mixing for standby use;

3) cement, aluminium powder and parget water are stirred, make cream slurry for subsequent use;

4) by 1) 2) in made raw material mix with the water adding its 0.65 times of weight part, uniform stirring adds 3 after 10 minutes again) in made cream slurry, continue stirring after 20 minutes, obtain cast slurry;

5) cast slurry is entered mould, send into the curing room maintenance 1 hour of 45-60 DEG C, obtain large adobe, by large adobe stripping and slicing on request, obtain adobe, fragment of brick base is put into reactor steam press maintenance, puts in storage.

Further, in described step 5), the temperature in reactor is 160-180 DEG C, and pressure is 0.1-0.8MPa, and curing time is 5-8 hour.

The parget water that the present invention uses is the saturated parget water at 25 DEG C.

The invention has the beneficial effects as follows: compared with existing steam pressurized brick manufacturing technology, (1) production technique of the present invention is simple, cost is low, the autoclave aerated concrete building block made, lightweight, intensity is high, thermal and insulating performance good, fire-resistant, absorbing sound and lowering noise is good, energy-conserving and environment-protective, meet the needs of construction work, meet the demand of environmental protection; (2) the present invention adds modified alta-mud, further increases the stability of slip, to finished product fragment of brick physical and mechanical properties have great raising, shock strength significantly promotes, and considerably reduces the cracking rate of fragment of brick.

Embodiment

A kind of steam pressurized brick, is made up of following composition: flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5% by weight percentage.

Further, described modified alta-mud is: by wilkinite grind into powder, is stirred in the clear water of its 8 times of weight parts, after mixing, add para-amino benzoic acid and lpsilon, temperature is adjusted to 65-75 DEG C, react after 1-2 hour, dry, obtain modified alta-mud; Described benzaminic acid and lpsilon weight and count 8 parts by weight, benzaminic acid and lpsilon adding proportion are 3:2.

Further, described Rock Powder is rosin rock dust by the mixing of 3:1 weight ratio and the mixture of olive rock dust, and described fat rock dust and peridotites powder footpath are 50-60 order.

A making method for steam pressurized brick, comprising:

1) flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5% is taken by weight percentage;

2) by unslaked lime grinding of ball grinder powdered and Rock Powder, flyash, modified alta-mud mixing for standby use;

3) cement, aluminium powder and parget water are stirred, make cream slurry for subsequent use;

4) by 1) 2) in made raw material mix with the water adding its 0.65 times of weight part, uniform stirring adds 3 after 10 minutes again) in made cream slurry, continue stirring after 20 minutes, obtain cast slurry;

5) cast slurry is entered mould, send into the curing room maintenance 1 hour of 45-60 DEG C, obtain large adobe, by large adobe stripping and slicing on request, obtain adobe, fragment of brick base is put into reactor steam press maintenance, puts in storage.

Further, in described step 5), the temperature in reactor is 160-180 DEG C, and pressure is 0.1-0.8MPa, and curing time is 5-8 hour.

Performance comparison after 3 days produced by the steam pressurized brick of the present invention and general steam pressurized brick:

	Ultimate compression strength MPa	Folding strength MPa	The mass loss % of monolithic brick	Thermal and insulating performance
					The steam pressurized brick of the present invention	15.3	3.8	1.1	Excellent
General steam pressurized brick	12	2.6	1.9	Generally

Table 1

As can be seen from Table 1, the steam pressurized brick of the present invention is much more superior than general steam pressurized brick in performance.

Claims (5)

1. a steam pressurized brick, is characterized in that, is made up by weight percentage of following composition: flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5%.

2. the steam pressurized brick of one according to claim 1, it is characterized in that, described modified alta-mud is: by wilkinite grind into powder, be stirred in the clear water of its 8 times of weight parts, after mixing, add para-amino benzoic acid and lpsilon, temperature is adjusted to 65-75 DEG C, react after 1-2 hour, dry, obtain modified alta-mud; Described benzaminic acid and lpsilon weight and count 8 parts by weight, benzaminic acid and lpsilon adding proportion are 3:2.

3. the steam pressurized brick of one according to claim 1, is characterized in that, described Rock Powder is rosin rock dust by the mixing of 3:1 weight ratio and the mixture of olive rock dust, and described fat rock dust and peridotites powder footpath are 50-60 order.

4. a making method for steam pressurized brick, is characterized in that:

1) flyash 62%, modified alta-mud 4%, Rock Powder 10%, unslaked lime 12%, cement 6%, aluminium powder 0.5%, parget water 5.5% is taken by weight percentage;

2) by unslaked lime grinding of ball grinder powdered and Rock Powder, flyash, modified alta-mud mixing for standby use;

3) cement, aluminium powder and parget water are stirred, make cream slurry for subsequent use;

4) by 1) 2) in made raw material mix with the water adding its 0.65 times of weight part, uniform stirring adds 3 after 10 minutes again) in made cream slurry, continue stirring after 20 minutes, obtain cast slurry;

5) cast slurry is entered mould, send into the curing room maintenance 1 hour of 45-60 DEG C, obtain large adobe, by large adobe stripping and slicing on request, obtain adobe, fragment of brick base is put into reactor steam press maintenance, puts in storage.

5. the making method of a kind of steam pressurized brick according to claim 4, is characterized in that: in described step 5), and the temperature in reactor is 160-180 DEG C, pressure 0.1-0.8MPa, and curing time is 5-8 hour.