CN105084825A - Method for manufacturing dual-purpose machine-made sand aerated concrete - Google Patents
Method for manufacturing dual-purpose machine-made sand aerated concrete Download PDFInfo
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- CN105084825A CN105084825A CN201510520701.2A CN201510520701A CN105084825A CN 105084825 A CN105084825 A CN 105084825A CN 201510520701 A CN201510520701 A CN 201510520701A CN 105084825 A CN105084825 A CN 105084825A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the technical field of concrete, and particularly discloses a method for manufacturing dual-purpose machine-made sand aerated concrete. The method includes nine main steps of reasonably and effectively smashing building waste step by step; mixing the building waste accordingly to appropriate proportions; adding necessary cement components and plant fiber components into the building waste; aerating the building waste to obtain the dual-purpose machine-made sand aerated concrete. The method has the advantages that the dual-purpose machine-made sand aerated concrete can be used for direct construction, so that certain heat-insulation effects can be realized as compared with existing concrete, and the dual-purpose machine-made sand aerated concrete is excellent in anti-cracking performance, moisture absorption performance and ventilation performance and high in strength; the dual-purpose machine-made sand aerated concrete also can be used for manufacturing machine-made sand aerated concrete building materials, the machine-made sand aerated concrete building materials are high in strength as compared with heat-insulation materials manufactured from existing common aerated concrete and are excellent in building performance, excellent anti-seismic, compression-resistant and heat-insulation effects can be realized by the machine-made sand aerated concrete building materials, and building construction requirements of various environments can be met.
Description
Technical field
The present invention relates to technical field of concrete.More particularly, the present invention relates to a kind of preparation method of dual-purpose Machine-made Sand gas concrete, can be used for direct construction on the one hand, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, building performance is good, and intensity is high, not easy to crack, meet the construction needs of construction industry.
Background technology
Concrete is generally made up of coarse aggregate, fine aggregate, cement, addition material, water and admixture.Wherein, sand belongs to fine aggregate, and its quality will account for about 30%.Along with the develop rapidly of economic construction, China's capital construction is in the ascendant, and material of construction consumes huge, and natural sand resource is increasingly exhausted, the excessive exploitation of natural sand, also result in great pressure to environment, ecology.Meanwhile, China's capital construction project grows with each passing day, Machine-made Sand is arisen at the historic moment, made sand to substitute natural sand has become a kind of trend as building sand, and, along with modern project structure is to the needs of large span, towering, heavily loaded future development and severe environmental conditions, not only require that machine-made sand concrete has high rigidity, also need the anti crack performance with certain heat insulation effect and height.But, existing concrete or machine-made sand concrete are in use, generally can shrink and creep, namely in concrete moisture evaporation or in the absorption processes such as building stones, there will be convergent-divergent alternately distortion, cause structure crack, affect the globality of structure stress, reduce its intensity.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of preparation method of dual-purpose Machine-made Sand gas concrete, the method is by the rationally effective pulverizing step by step to building waste and by suitable proportion mixing, and be added into necessary cement component and plant fibre components wherein, dual-purpose Machine-made Sand gas concrete is made in inflation, can be used for direct construction on the one hand, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, building performance is good, intensity is high, not easy to crack, meet the construction needs of construction industry.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of preparation method of dual-purpose Machine-made Sand gas concrete, it is characterized in that, comprise the following steps:
Step one, a certain amount of building waste is ground into the one-level Machine-made Sand that particle diameter is less than 30mm;
Step 2, the described one-level Machine-made Sand in step one is got 1/3 parts by weight of crushed become particle diameter to be less than the secondary mechanisms sand of 20mm, in one-level Machine-made Sand, scrap glass is added in crushing process, wherein, the weight ratio of scrap glass and one-level Machine-made Sand is 1-2:23-30;
Step 3, the described one-level Machine-made Sand in step one got 1/3 parts by weight of crushed and become particle diameter to be three grades of Machine-made Sands of 20-25mm, in one-level Machine-made Sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 1-2:20-25;
Step 4, the described secondary mechanisms sand in step 2 is got 1/2 parts by weight of crushed become particle diameter to be less than the level Four Machine-made Sand of 5mm, wherein, in crushing process, be added into scrap glass in secondary mechanisms sand, wherein, the weight ratio of scrap glass and secondary mechanisms sand is 1-3:100-135;
Step 5, the described secondary mechanisms sand of 1/3 weight part in step 2 got be ground into the Pyatyi Machine-made Sand that particle diameter is 10-15mm, wherein, in secondary mechanisms sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 3-5:25-35;
Step 6, the secondary mechanisms sand of the described one-level Machine-made Sand of 1/3 weight part remaining in step one to step 5, remaining 1/6 weight part, three grades of Machine-made Sands, level Four Machine-made Sand, Pyatyi Machine-made Sands are carried out being mixed with into concrete base-material with cement, wherein, the addition of cement is the 30-45% accounting for concrete base-material weight;
Step 7, by ramee, sisal fibers and maleic anhydride in mass ratio for 15-20:30-40:1-3 is mixed with into fiber composition;
Step 8, by described concrete base-material, fiber composition and water in mass ratio for the amount of 100-130:3-5:13-15 is fully mixed with into concrete secondary material;
Step 9, in described concrete secondary material, be evenly filled with a certain amount of high-temperature gas gradually, afterwards, 35-50 DEG C of insulation is placed at least 30min and is obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 175-200 DEG C.
In such scheme, in step one ~ step 5, building waste is ground into different particle diameters step by step, can by large-size particles as aggregate, different small size particles is as stopping composition, fully mix, to make dual-purpose Machine-made Sand gas concrete size distribution and the even structure of final preparation, meanwhile, in the middle of different step, with the addition of scrap glass respectively, to improve to the friction of building waste and cutting in crushing process, meanwhile, building waste can try one's best again by scrap glass pulverize more careful, complement each other, in addition, add Wingdale in crushing process and in one-level Machine-made Sand, spray a small amount of water simultaneously, to carrying out a small amount of corrosion to the pulverized particles of building waste, reduce its corner angle, improve the tackiness of building waste pulverized particles and other dual-purpose Machine-made Sand gas concrete raw materials, improve the stability of the unitized construction of dual-purpose Machine-made Sand gas concrete, and reduce its cutting to sponge, ensure the toughness of dual-purpose Machine-made Sand gas concrete, reduce cracking, in step 9, a certain amount of high-temperature gas is evenly filled with gradually in described concrete secondary material, object is: give in concrete secondary material on the one hand and inflate, improve the porosity of its inside, improve concrete heat-insulating property, on the other hand, high-temperature gas improves the temperature around bubble, the ramee distributed around bubble, can graft reaction be there is in sisal fibers and maleic anhydride, form vegetable fibre cross-linked network, the dual-purpose Machine-made Sand gas concrete prepared is made not only to have good heat insulation effect, and each bubble structure is cross-linked with each other by vegetable fibre net, largely enhance anti crack performance and the moisture absorption of dual-purpose Machine-made Sand gas concrete, permeability.
Preferably, wherein, in described step 2, scrap glass is ground into particle diameter and is less than 10mm.
Preferably, wherein, in described step 2, the weight ratio of scrap glass and one-level Machine-made Sand is 1:23.
Preferably, wherein, in described step 3, the weight ratio of Wingdale and one-level Machine-made Sand is 2:25.
Preferably, wherein, in described step 4, scrap glass is ground into particle diameter and is less than 3mm.
Preferably, wherein, be evenly filled with a certain amount of high-temperature gas gradually in described step 9 in described concrete secondary material, afterwards, at 35-40 DEG C, insulation is placed 20min and is obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 200 DEG C.
Preferably, wherein, described high-temperature gas contains the water vapour of 10-15% volume.
Preferably, wherein, it is characterized in that, described in described step 9, the hole of dual-purpose Machine-made Sand gas concrete reaches 30 ~ 55%.
Preferably, wherein, described in described step 9, the hole of dual-purpose Machine-made Sand gas concrete reaches 55%.
Preferably, wherein, described building waste is one or several the composition in concrete blocks, crushed stone, brick and tile fragment or waste mortar.
The present invention at least comprises following beneficial effect:
In step one ~ step 5, building waste is ground into different particle diameters step by step, can by large-size particles as aggregate, different small size particles is as stopping composition, fully mix, to make dual-purpose Machine-made Sand gas concrete size distribution and the even structure of final preparation;
Meanwhile, in the middle of different step, with the addition of scrap glass respectively, to improve to the friction of building waste and cutting in crushing process, meanwhile, building waste can try one's best again by scrap glass pulverize more careful, complement each other;
In addition, add Wingdale in crushing process and in one-level Machine-made Sand, spray a small amount of water simultaneously, to carrying out a small amount of corrosion to the pulverized particles of building waste, reduce its corner angle, improve the tackiness of building waste pulverized particles and other dual-purpose Machine-made Sand gas concrete raw materials, improve the stability of the unitized construction of dual-purpose Machine-made Sand gas concrete, and reduce its cutting to sponge, ensure the toughness of dual-purpose Machine-made Sand gas concrete, reduce cracking;
In step 9, a certain amount of high-temperature gas is evenly filled with gradually in described concrete secondary material, object is: give in concrete secondary material on the one hand and inflate, improve the porosity of its inside, improve concrete heat-insulating property, on the other hand, high-temperature gas improves the temperature around bubble, the ramee distributed around bubble, can graft reaction be there is in sisal fibers and maleic anhydride, form vegetable fibre cross-linked network, the dual-purpose Machine-made Sand gas concrete prepared is made not only to have good heat insulation effect, and each bubble structure is cross-linked with each other by vegetable fibre net, largely enhance anti crack performance and the moisture absorption of dual-purpose Machine-made Sand gas concrete, permeability,
In sum, the method is by the rationally effective pulverizing step by step to building waste, and by suitable proportion mixing, and be added into necessary cement component and plant fibre components wherein, dual-purpose Machine-made Sand gas concrete is made in inflation, can be used for direct construction on the one hand, than existing concrete, there is certain heat insulation effect, and better anti crack performance, intensity is high, moisture absorption, permeability is good, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, the lagging material prepared than existing common gas concrete has higher intensity, building performance is good, there is good antidetonation, resistance to compression and heat insulation effect, meet the building operation needs of various environment.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of dual-purpose Machine-made Sand gas concrete of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to specification sheets word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Embodiment 1
As shown in Figure 1, the invention provides a kind of preparation method of dual-purpose Machine-made Sand gas concrete, it is characterized in that, comprise the following steps:
Step one, a certain amount of building waste is ground into the one-level Machine-made Sand that particle diameter is less than 30mm;
Step 2, the described one-level Machine-made Sand in step one is got 1/3 parts by weight of crushed become particle diameter to be less than the secondary mechanisms sand of 20mm, in one-level Machine-made Sand, scrap glass is added in crushing process, wherein, the weight ratio of scrap glass and one-level Machine-made Sand is 1-2:30;
Step 3, the described one-level Machine-made Sand in step one got 1/3 parts by weight of crushed and become particle diameter to be three grades of Machine-made Sands of 20-25mm, in one-level Machine-made Sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 1-2:25;
Step 4, the described secondary mechanisms sand in step 2 is got 1/2 parts by weight of crushed become particle diameter to be less than the level Four Machine-made Sand of 5mm, wherein, in crushing process, be added into scrap glass in secondary mechanisms sand, wherein, the weight ratio of scrap glass and secondary mechanisms sand is 1-3:135;
Step 5, the described secondary mechanisms sand of 1/3 weight part in step 2 got be ground into the Pyatyi Machine-made Sand that particle diameter is 10-15mm, wherein, in secondary mechanisms sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 3-5:35;
Step 6, the secondary mechanisms sand of the described one-level Machine-made Sand of 1/3 weight part remaining in step one to step 5, remaining 1/6 weight part, three grades of Machine-made Sands, level Four Machine-made Sand, Pyatyi Machine-made Sands are carried out being mixed with into concrete base-material with cement, wherein, the addition of cement is the 30-45% accounting for concrete base-material weight;
Step 7, by ramee, sisal fibers and maleic anhydride in mass ratio for 20:40:1-3 is mixed with into fiber composition;
Step 8, by described concrete base-material, fiber composition and water in mass ratio for the amount of 130:3-5:13-15 is fully mixed with into concrete secondary material;
Step 9, in described concrete secondary material, be evenly filled with a certain amount of high-temperature gas gradually, afterwards, 50 DEG C of insulations are placed at least 30min and are obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 200 DEG C.
Wherein,
In described step 9, high-temperature gas contains the water vapour of 10-15% volume; The hole of dual-purpose Machine-made Sand gas concrete reaches 50-55%;
In described step 2, scrap glass is ground into particle diameter and is less than 10mm;
In described step 4, scrap glass is ground into particle diameter and is less than 3mm;
After step 9 terminates, dual-purpose Machine-made Sand gas concrete can be used for direct construction on the one hand, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, in the process making building board, obtained dual-purpose Machine-made Sand gas concrete also needs through subsequent disposal, and the material of construction being shaped as solid form could be used for building operation;
Described building waste is one or several the composition in concrete blocks, crushed stone, brick and tile fragment or waste mortar, in use building waste process, simple screening to be carried out to building waste, remove material-mud and wood chip as far as possible, avoid this kind of material to reduce the intensity of dual-purpose Machine-made Sand gas concrete.
The parameter recording above-mentioned dual-purpose Machine-made Sand gas concrete is:
The slump is 165,7 days intensity is 26.9Mpa, and 28 days intensity is 43.3Mpa.Be greater than the requirement of the preparation strength fcu.o=40.13Mpa of concrete.
Embodiment 2
As shown in Figure 1, the invention provides a kind of preparation method of dual-purpose Machine-made Sand gas concrete, it is characterized in that, comprise the following steps:
Step one, a certain amount of building waste is ground into the one-level Machine-made Sand that particle diameter is less than 30mm;
Step 2, the described one-level Machine-made Sand in step one is got 1/3 parts by weight of crushed become particle diameter to be less than the secondary mechanisms sand of 20mm, in one-level Machine-made Sand, scrap glass is added in crushing process, wherein, the weight ratio of scrap glass and one-level Machine-made Sand is 1-2:26;
Step 3, the described one-level Machine-made Sand in step one got 1/3 parts by weight of crushed and become particle diameter to be three grades of Machine-made Sands of 20-25mm, in one-level Machine-made Sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 1-2:23;
Step 4, the described secondary mechanisms sand in step 2 is got 1/2 parts by weight of crushed become particle diameter to be less than the level Four Machine-made Sand of 5mm, wherein, in crushing process, be added into scrap glass in secondary mechanisms sand, wherein, the weight ratio of scrap glass and secondary mechanisms sand is 1-3:120;
Step 5, the described secondary mechanisms sand of 1/3 weight part in step 2 got be ground into the Pyatyi Machine-made Sand that particle diameter is 10-15mm, wherein, in secondary mechanisms sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 3-5:30;
Step 6, the secondary mechanisms sand of the described one-level Machine-made Sand of 1/3 weight part remaining in step one to step 5, remaining 1/6 weight part, three grades of Machine-made Sands, level Four Machine-made Sand, Pyatyi Machine-made Sands are carried out being mixed with into concrete base-material with cement, wherein, the addition of cement is the 30-45% accounting for concrete base-material weight;
Step 7, by ramee, sisal fibers and maleic anhydride in mass ratio for 20:35:1-3 is mixed with into fiber composition;
Step 8, by described concrete base-material, fiber composition and water in mass ratio for the amount of 115:3-5:13-15 is fully mixed with into concrete secondary material;
Step 9, in described concrete secondary material, be evenly filled with a certain amount of high-temperature gas gradually, afterwards, 35-50 DEG C of insulation is placed at least 30min and is obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 185 DEG C.
Wherein,
Described high-temperature gas contains the water vapour of 10-15% volume; The hole of dual-purpose Machine-made Sand gas concrete reaches 40-45%;
In described step 2, scrap glass is ground into particle diameter and is less than 10mm;
In described step 4, scrap glass is ground into particle diameter and is less than 3mm;
After step 9 terminates, can be used for direct construction on the one hand, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, in the process making building board, obtained dual-purpose Machine-made Sand gas concrete also needs through subsequent disposal, and the material of construction being shaped as solid form could be used for building operation;
Described building waste is one or several the composition in concrete blocks, crushed stone, brick and tile fragment or waste mortar, in use building waste process, simple screening to be carried out to building waste, remove material-mud and wood chip as far as possible, avoid this kind of material to reduce the intensity of dual-purpose Machine-made Sand gas concrete.
The parameter recording above-mentioned dual-purpose Machine-made Sand gas concrete is:
The slump is 155,7 days intensity is 29.9Mpa, and 28 days intensity is 39.8Mpa.Be greater than the requirement of the preparation strength fcu.o=40.2Mpa of concrete.
Embodiment 3
As shown in Figure 1, the invention provides a kind of preparation method of dual-purpose Machine-made Sand gas concrete, it is characterized in that, comprise the following steps:
Step one, a certain amount of building waste is ground into the one-level Machine-made Sand that particle diameter is less than 30mm;
Step 2, the described one-level Machine-made Sand in step one is got 1/3 parts by weight of crushed become particle diameter to be less than the secondary mechanisms sand of 20mm, in one-level Machine-made Sand, scrap glass is added in crushing process, wherein, the weight ratio of scrap glass and one-level Machine-made Sand is 1-2:23; Wherein,
Step 3, the described one-level Machine-made Sand in step one got 1/3 parts by weight of crushed and become particle diameter to be three grades of Machine-made Sands of 20-25mm, in one-level Machine-made Sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 1-2:20;
Step 4, the described secondary mechanisms sand in step 2 is got 1/2 parts by weight of crushed become particle diameter to be less than the level Four Machine-made Sand of 5mm, wherein, in crushing process, be added into scrap glass in secondary mechanisms sand, wherein, the weight ratio of scrap glass and secondary mechanisms sand is 1-3:100;
Step 5, the described secondary mechanisms sand of 1/3 weight part in step 2 got be ground into the Pyatyi Machine-made Sand that particle diameter is 10-15mm, wherein, in secondary mechanisms sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 3-5:25;
Step 6, the secondary mechanisms sand of the described one-level Machine-made Sand of 1/3 weight part remaining in step one to step 5, remaining 1/6 weight part, three grades of Machine-made Sands, level Four Machine-made Sand, Pyatyi Machine-made Sands are carried out being mixed with into concrete base-material with cement, wherein, the addition of cement is the 30-45% accounting for concrete base-material weight;
Step 7, by ramee, sisal fibers and maleic anhydride in mass ratio for 15:30:1-3 is mixed with into fiber composition;
Step 8, by described concrete base-material, fiber composition and water in mass ratio for the amount of 100:3:13 is fully mixed with into concrete secondary material;
Step 9, in described concrete secondary material, be evenly filled with a certain amount of high-temperature gas gradually, afterwards, 35-50 DEG C of insulation is placed at least 30min and is obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 175 DEG C.
Wherein, described high-temperature gas contains the water vapour of 10-15% volume; The hole of dual-purpose Machine-made Sand gas concrete reaches 30%;
In described step 2, scrap glass is ground into particle diameter and is less than 10mm;
In described step 4, scrap glass is ground into particle diameter and is less than 3mm;
After step 9 terminates, can be used for direct construction on the one hand, can be used for preparing machine-processed sand aerated concrete building materials on the other hand, in the process making building board, obtained dual-purpose Machine-made Sand gas concrete also needs through subsequent disposal, and the material of construction being shaped as solid form could be used for building operation;
Described building waste is one or several the composition in concrete blocks, crushed stone, brick and tile fragment or waste mortar, in use building waste process, simple screening to be carried out to building waste, remove material-mud and wood chip as far as possible, avoid this kind of material to reduce the intensity of dual-purpose Machine-made Sand gas concrete.
The slump is 175,7 days intensity is 27.9Mpa, and 28 days intensity is 42.8Mpa.Be greater than the requirement of the preparation strength fcu.o=41.1Mpa of concrete.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification sheets and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. the preparation method of dual-purpose Machine-made Sand gas concrete, is characterized in that, comprise the following steps:
Step one, a certain amount of building waste is ground into the one-level Machine-made Sand that particle diameter is less than 30mm;
Step 2, the described one-level Machine-made Sand in step one is got 1/3 parts by weight of crushed become particle diameter to be less than the secondary mechanisms sand of 20mm, in one-level Machine-made Sand, scrap glass is added in crushing process, wherein, the weight ratio of scrap glass and one-level Machine-made Sand is 1-2:23-30;
Step 3, the described one-level Machine-made Sand in step one got 1/3 parts by weight of crushed and become particle diameter to be three grades of Machine-made Sands of 20-25mm, in one-level Machine-made Sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 1-2:20-25;
Step 4, the described secondary mechanisms sand in step 2 is got 1/2 parts by weight of crushed become particle diameter to be less than the level Four Machine-made Sand of 5mm, wherein, in crushing process, be added into scrap glass in secondary mechanisms sand, wherein, the weight ratio of scrap glass and secondary mechanisms sand is 1-3:100-135;
Step 5, the described secondary mechanisms sand of 1/3 weight part in step 2 got be ground into the Pyatyi Machine-made Sand that particle diameter is 10-15mm, wherein, in secondary mechanisms sand, Wingdale is added in crushing process, and in one-level Machine-made Sand, spray a small amount of water simultaneously, wherein, the weight ratio of Wingdale and one-level Machine-made Sand is 3-5:25-35;
Step 6, the secondary mechanisms sand of the described one-level Machine-made Sand of 1/3 weight part remaining in step one to step 5, remaining 1/6 weight part, three grades of Machine-made Sands, level Four Machine-made Sand, Pyatyi Machine-made Sands are carried out being mixed with into concrete base-material with cement, wherein, the addition of cement is the 30-45% accounting for concrete base-material weight;
Step 7, by ramee, sisal fibers and maleic anhydride in mass ratio for 15-20:30-40:1-3 is mixed with into fiber composition;
Step 8, by described concrete base-material, fiber composition and water in mass ratio for the amount of 100-130:3-5:13-15 is fully mixed with into concrete secondary material;
Step 9, in described concrete secondary material, be evenly filled with a certain amount of high-temperature gas gradually, afterwards, 35-50 DEG C of insulation is placed at least 30min and is obtained dual-purpose Machine-made Sand gas concrete, and wherein, the temperature of high-temperature gas is 175-200 DEG C.
2. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, in described step 2, scrap glass is ground into particle diameter and is less than 10mm.
3. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, in described step 2, the weight ratio of scrap glass and one-level Machine-made Sand is 1:23.
4. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, in described step 3, the weight ratio of Wingdale and one-level Machine-made Sand is 2:25.
5. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, in described step 4, scrap glass is ground into particle diameter and is less than 3mm.
6. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, in described concrete secondary material, a certain amount of high-temperature gas is evenly filled with gradually in described step 9, afterwards, at 35-40 DEG C, insulation is placed 20min and is obtained dual-purpose Machine-made Sand gas concrete, wherein, the temperature of high-temperature gas is 200 DEG C.
7. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 6, it is characterized in that, described high-temperature gas contains the water vapour of 10-15% volume.
8. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, it is characterized in that, described in described step 9, the hole of dual-purpose Machine-made Sand gas concrete reaches 30 ~ 55%.
9. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 8, is characterized in that, described in described step 9, the hole of dual-purpose Machine-made Sand gas concrete reaches 55%.
10. the preparation method of dual-purpose Machine-made Sand gas concrete as claimed in claim 1, is characterized in that, described building waste is one or several the composition in concrete blocks, crushed stone, brick and tile fragment or waste mortar.
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Application publication date: 20151125 |