CN103693920A - Low-density high-strength self-insulation ceramsite hollow block and production method thereof - Google Patents

Low-density high-strength self-insulation ceramsite hollow block and production method thereof Download PDF

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Publication number
CN103693920A
CN103693920A CN201310727156.5A CN201310727156A CN103693920A CN 103693920 A CN103693920 A CN 103693920A CN 201310727156 A CN201310727156 A CN 201310727156A CN 103693920 A CN103693920 A CN 103693920A
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building block
kiln
haydite
water
humidity
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尹诗东
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HENGYANG LONGDU NEW ENERGY SAVING BUILDING MATERIAL Co Ltd
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HENGYANG LONGDU NEW ENERGY SAVING BUILDING MATERIAL Co Ltd
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Priority to CN201310727156.5A priority Critical patent/CN103693920A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a low-density high-strength self-insulation ceramsite hollow block and a production method thereof. The block comprises the following materials by weight: 1 part of cement, 0.5-1.5 parts of ceramsite, 0.3-1.0 part of slag, 0.3-1.0 part of mountain flour, 0.25-0.5 part of sand, 0.05-0.3 part of a modifier and 0.3-0.68 part of water, wherein the modifier is polyvinyl acetate or ethylene-vinyl acetate; the ceramsite is in a level of 400-500 and has the particle size distribution of 5-12 mm. The block has the void ratio of 40%-45%, the volume weight of 800+/-50 kg/m<3>, the compressive strength not less than 3.5 Mpa and the thermal resistance value R not less than 0.66 m<2>*k/w. The production method comprises the following steps: uniformly stirring a modifier water solution and other materials, conveying a mixture into a forming machine for compression forming, conveying the block subjected to compression forming into a steam kiln for steam curing, and discharging from the kiln.

Description

Low density, high-strength self thermal insulation haydite holllow building block and production method
Technical field
The present invention relates to material of construction production field, particularly a kind of low density, high-strength self thermal insulation haydite holllow building block and production method that adopts modification haydite to produce.
Background technology
In self-insulating wall material product, not only require density and intensity index, more to focus on the standard-required that its thermal property must meet building energy conservation.Generally speaking, density is lighter, and better, but intensity is also lower for thermal property.At present, China's haydite heat insulation building block is carried out < < lightweight small size hollow concrete blocks > > GB/T15229-2011 standard.Its density and intensity have corresponding clearly regulation.As 800 grades of density, intensity >=2.5Mpa; 1000 grades of density, intensity >=3.5Mpa etc.
Generally speaking, density is lighter, and better, but intensity is also lower for thermal property, and vice versa.In haydite heat insulation building block, the performance index of haydite itself are the principal elements that affects density, intensity and thermal property.When building block hollow rate is greater than more than 40%, form other material of building block, as after the proportionings such as cement, stopping composition determine, the density of haydite is larger, and intensity is higher, and prepared concrete material thermal property is poorer.As select 400 grades of haydites, can prepare 1200-1400Kg/m 3ceramsite Concrete, its intensity 3.5-7.5 Mpa, thermal conductivity 0.47-0.59W/MK, thermal property meets the demands.And for example select 800 grades of haydites, preparation 1600-1900Kg/m 3ceramsite Concrete, intensity reaches 20-40 Mpa, and thermal conductivity 0.77-1.15W/MK, strength increase, but thermal property just can not meet the function service requirements of self-heat conserving.Therefore, adopt low-density ceramsite preparation high-strength ceramsite concrete, production intensity is relatively high and thermal property meets the heat insulation building block walling of service requirements, is the direction of novel energy-conserving building materials development.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art and a kind of low density, high-strength self thermal insulation haydite holllow building block and production method are provided.
Technical scheme of the present invention is: a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 0.5-1.5, slag: 0.30-1.0, stone flour: 0.3-1.0, sand: 0.25-0.5, properties-correcting agent: 0.05-0.30, water: 0.3-0.68;
Described properties-correcting agent is polyvinyl acetate (PVA) or ethene-vinyl acetate;
Described haydite is 400-500 level, grain composition 5-12mm;
Building block hole ratio 40-45%, unit weight 800 ± 50Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.
The concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, haydite and cement are sent into dry mixing in stirrer, after stirring, add 1/2 modifier aqueous solution to mix haydite mortar, make cement granules fully wrap up haydite, then add slag, stone flour, sand to stir together, in whipping process, add remaining modifier aqueous solution and stir, in whipping process, according to the appropriate moisturizing of the humidity of material, controlling the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, in kiln, humidity is 50-80 ℃, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
Further technical scheme of the present invention is: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, the haydite draining the water is soaked in modifier aqueous solution and is stirred 1 minute;
D, cement, slag, stone flour, sand are sent into and are stirred in stirrer after, again haydite is added in stirrer and mixed evenly together with soaking solution, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
E, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop supplying gas, vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The present invention further technical scheme is: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, cement, slag, stone flour, sand are sent into after stirring in stirrer haydite is sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is >=0.3Mpa, and intensification simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The present invention further technical scheme is: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, modifier aqueous solution and cement are sent in stirrer and stirred, again haydite is sent in stirrer and stirred, after stirring, slag, stone flour, sand are added together and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The present invention more further technical scheme be: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, cement, haydite, slag, stone flour, sand are sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
Preferred the first production method in aforesaid method.
The present invention compared with prior art has following features:
1, by modifier solution, haydite is given to processing, make a haydite surface attachment skim, strengthened the bonding strength of haydite and cement material.
2, haydite is a kind of porous material of high temperature sintering, in very easily moisture absorption weightening finish of wet environment, thus the heat conductivility of change Ceramsite Concrete.By modifier solution, haydite is given to processing, make a haydite surface attachment skim, rete, as watertight insulation, has reduced haydite hygroscopic property.
3, by modifier solution, haydite is given to processing and can improve haydite surface tension, it is connected each other and is difficult for rolling.Solved because of haydite density light, outward appearance is spheroidal, easily tumbles downwards, and stir while expecting to enter in forming machine hopper and moulding box when oblique charge hoisting by belt conveyer, also because light weight easily rolls and to scatter to surrounding, haydite skewness while causing moulding and affect the problem of quality product.
4, the low density, the high-strength self thermal insulation haydite holllow building block that adopt the present invention to produce have not only improved the thermal property of building block, have also improved the intensity of building block.
Below in conjunction with the drawings and specific embodiments, detailed structure of the present invention is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the production scheme in embodiment mono-;
Accompanying drawing 2 is the production scheme in embodiment bis-;
Accompanying drawing 3 is the production scheme in embodiment tri-;
Accompanying drawing 4 is the production scheme in embodiment tetra-;
Accompanying drawing 5 is the production scheme in embodiment five;
Accompanying drawing 6 is low density, high-strength self thermal insulation haydite holllow building block structural representation;
Accompanying drawing 7 is the A-A sectional view in accompanying drawing 6.
Embodiment
Embodiment mono-, a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 1, slag: 0.56, stone flour: 0.56, sand: 0.33, properties-correcting agent: 0.15, water: 0.55;
Described properties-correcting agent is polyvinyl acetate (PVA);
Described haydite is 400-500 level, grain composition 5-12mm.
Its concrete production method is as follows:
A, haydite is put into water soak 24h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, haydite and cement are sent into dry mixing in stirrer, after stirring, add 1/2 modifier aqueous solution to mix haydite mortar, make cement granules fully wrap up haydite, then add slag, stone flour, sand to stir together, in whipping process, add remaining modifier aqueous solution and stir, in whipping process, according to the appropriate moisturizing of the humidity of material, controlling the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 2.8S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is 0.3Mpa, and heats up simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The building block hole ratio 40-45% producing, unit weight 800 ± 50Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.
Embodiment bis-, a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 1, slag: 0.56, stone flour: 0.56, sand: 0.33, properties-correcting agent: 0.15, water: 0.55;
Described properties-correcting agent is polyvinyl acetate (PVA);
Described haydite is 400-500 level, grain composition 5-12mm.
Its concrete production method is as follows:
A, haydite is put into water soak 24h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, the haydite draining the water is soaked in modifier solution and is stirred 1 minute;
D, cement, slag, stone flour, sand are sent into and are stirred in stirrer after, again haydite is added in stirrer and mixed evenly together with soaking solution, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 2.8S;
E, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is 0.3Mpa, and heats up simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The building block hole ratio 40-45% producing, unit weight 800 ± 50 Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.
Embodiment tri-, a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 1, slag: 0.56, stone flour: 0.56, sand: 0.33, properties-correcting agent: 0.15, water: 0.55;
Described properties-correcting agent is polyvinyl acetate (PVA);
Described haydite is 400-500 level, grain composition 5-12mm.
Its concrete production method is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, haydite is put into water soak 24h, it is fully absorbed water, then water is drained stand-by;
C, cement, slag, stone flour, sand are sent into after stirring in stirrer haydite is sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 2.8S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is 0.3Mpa, and heats up simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The building block hole ratio 40-45% producing, unit weight 800 ± 50 Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.
Embodiment tetra-, a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 1, slag: 0.56, stone flour: 0.56, sand: 0.33, properties-correcting agent: 0.15, water: 0.55;
Described properties-correcting agent is ethene-vinyl acetate;
Described haydite is 400-500 level, grain composition 5-12mm.
Its concrete production method is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, modifier aqueous solution and cement are sent in stirrer and stirred, again haydite is sent in stirrer and stirred, after stirring, slag, stone flour, sand are added together and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 2.8S.
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is 0.3Mpa, and heats up simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The building block hole ratio 40-45% producing, unit weight 800 ± 50 Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.
Embodiment five, a kind of low density, high-strength self thermal insulation haydite holllow building block, material by following component forms, its component is weight part, wherein: cement: 1, haydite: 1, slag: 0.56, stone flour: 0.56, sand: 0.33, properties-correcting agent: 0.15, water: 0.55;
Described modifier solution is ethene-vinyl acetate;
Described haydite is 400-500 level, grain composition 5-12mm.
Its concrete production method is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, cement, haydite, slag, stone flour, sand are sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 2.8S.
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is 0.3Mpa, and heats up simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
The building block hole ratio 40-45% producing, unit weight 800 ± 50 Kg/m 3, ultimate compression strength>=3.5 Mpa, thermal resistance value R>=0.66m 2k/w.

Claims (6)

1. a low density, high-strength self thermal insulation haydite holllow building block, it is characterized in that: the material by following component forms, its component is weight part, wherein: cement: 1, haydite: 0.5-1.5, slag: 0.3-1.0, stone flour: 0.3-1.0, sand: 0.25-0.5, properties-correcting agent: 0.05-0.3, water: 0.3-0.68;
Described modifier solution is polyvinyl acetate (PVA) or ethene-vinyl acetate.
2. a kind of low density according to claim 1, high-strength self thermal insulation haydite holllow building block, is characterized in that: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, haydite and cement are sent into dry mixing in stirrer, after stirring, add 1/2 modifier aqueous solution to mix haydite mortar, make cement granules fully wrap up haydite, then add slag, stone flour, sand to stir together, in whipping process, add remaining modifier aqueous solution and stir, in whipping process, according to the appropriate moisturizing of the humidity of material, controlling the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, in kiln, humidity is 50-80 ℃, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
3. a kind of low density according to claim 1, high-strength self thermal insulation haydite holllow building block, is characterized in that: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, the haydite draining the water is soaked in modifier aqueous solution and is stirred 1 minute;
D, cement, slag, stone flour, sand are sent into and are stirred in stirrer after, again haydite is added in stirrer and mixed evenly together with soaking solution, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
E, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
4. a kind of low density according to claim 1, high-strength self thermal insulation haydite holllow building block, is characterized in that: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, haydite is put into water immersion >=1h, it is fully absorbed water, then water is drained stand-by;
B, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
C, cement, slag, stone flour, sand are sent into after stirring in stirrer haydite is sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
D, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure is >=0.3Mpa, and intensification simultaneously, and heat-up rate is 16-20 ℃/h, when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
5. a kind of low density according to claim 1, high-strength self thermal insulation haydite holllow building block, is characterized in that: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, modifier aqueous solution and cement are sent in stirrer and stirred, again haydite is sent in stirrer and stirred, after stirring, slag, stone flour, sand are added together and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
6. a kind of low density according to claim 1, high-strength self thermal insulation haydite holllow building block, is characterized in that: the concrete production method of low density, high-strength self thermal insulation haydite holllow building block is as follows:
A, properties-correcting agent is dissolved in water, is mixed with modifier aqueous solution;
B, cement, haydite, slag, stone flour, sand are sent in stirrer and stirred, again modifier aqueous solution is added in stirrer and stirred, in whipping process according to the appropriate moisturizing of the humidity of material, control the humidity of mix material, then send into compression moulding after forming machine dress mould vibratory compaction, the material dress mould cloth time is 1.2-4.5S;
C, the building block of compression moulding is sent into steam kiln carry out vapor cure, enter kiln building block rests and gives hot 1h in kiln, giving hot temperature degree is 15-45 ℃, humidity 50-80 ℃ in kiln, the effect of resting is to make building block obtain certain intensity, because the water in building block, air, grout are different with the thermal expansivity gathering materials, as do not made building block reach certain intensity in the phase of resting, when heating up due to building block in the impact of bulging force of various materials, may cause building block cracking;
Rest and finish to start to supply gas, vapor pressure >=0.3Mpa, and heat up, heat-up rate is 16-20 ℃/h; simultaneously when kiln temperature reaches 82 ℃, stop is supplied gas, and vexed kiln maintenance 10-12h, after curing time reaches, with 2-3.5 ℃/h speed nature cooling down, when temperature is down to 35-40 ℃ of kiln temperature degree, opens wicket and the natural ventilation of Yao Ding skylight and drain steam in kiln, until block surfaces, do not get final product kiln discharge during aobvious watermark.
CN201310727156.5A 2013-12-26 2013-12-26 Low-density high-strength self-insulation ceramsite hollow block and production method thereof Pending CN103693920A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198462A (en) * 2015-10-19 2015-12-30 浙江康星耐火材料有限公司 Fire-resistant and heat-preserving ceramsite brick
CN105272291A (en) * 2015-10-19 2016-01-27 浙江康星耐火材料有限公司 Preparation method of refractory and heat-insulating ceramsite brick
WO2017067440A1 (en) * 2015-10-19 2017-04-27 北京新能源汽车股份有限公司 Electric vehicle battery pack swap control system and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101748840A (en) * 2008-12-02 2010-06-23 上海德滨机械设备科技有限公司 Concrete modular brick and wall structure thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101748840A (en) * 2008-12-02 2010-06-23 上海德滨机械设备科技有限公司 Concrete modular brick and wall structure thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198462A (en) * 2015-10-19 2015-12-30 浙江康星耐火材料有限公司 Fire-resistant and heat-preserving ceramsite brick
CN105272291A (en) * 2015-10-19 2016-01-27 浙江康星耐火材料有限公司 Preparation method of refractory and heat-insulating ceramsite brick
WO2017067440A1 (en) * 2015-10-19 2017-04-27 北京新能源汽车股份有限公司 Electric vehicle battery pack swap control system and method
CN105272291B (en) * 2015-10-19 2018-11-27 浙江康星耐火材料有限公司 A kind of preparation process of haydite fireproof insulation brick

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