CN104563371A - Preparation method for extruded polystyrene (XPS)-foaming cement composite self-thermal-insulation T-shaped wall corner building block - Google Patents
Preparation method for extruded polystyrene (XPS)-foaming cement composite self-thermal-insulation T-shaped wall corner building block Download PDFInfo
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Abstract
The invention discloses a preparation method for an extruded polystyrene (XPS)-foaming cement composite self-thermal-insulation T-shaped wall corner building block. According to the preparation method disclosed by the invention, the prepared composite building block comprises two parts, namely an XPS insulation board mould body and foaming cement, wherein the XPS insulation board mould body is prepared by an extrusion moulding method and adopts a T-shaped three-dimensional structure, the center of the T-shaped stereo structure is a cavity, connection reinforcing ribs are arranged in the cavity, the cavity in an XPS insulation board is filled with the foaming cement, and the foaming cement and the XPS insulation board mould body are solidified and bonded together to be utilized as a sandwich material. The composite self-thermal-insulation building block disclosed by the invention is especially applied to building of wall T-shaped corners which are matched with expanded polystyrene (EPS)-foaming cement composite self-thermal-insulation vertical wall building blocks, and has the advantages that the thermal insulation effect is good, the body weight is light, the compressive strength is high, the strength can be regulated and controlled, the shock resistance is high, the sound insulation performance, the seismic performance, the moisture resistance and the frost resistance are good, the long-term stability is excellent, the flame retardance and fire resistance are good (the fireproofing grade of the utilized XPS is B1 and the fireproofing grade of the utilized foaming cement is A), the production process is simple, the construction and building are convenient, and the comprehensive cost is low; the composite self-thermal-insulation building block is especially suitable for construction of passive houses.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block.
Background technology
Along with the energy, the increasingly sharpening of crisis of resource, actively must advocate green building, the facade lighting of strengthening building energy conservation.Adopt the various materials for wall with heat insulation function, not only can save ample resources, can also energy consumption be reduced, reduce environment pollution.
In this context, external thermal insulation system obtains and develops on an unprecedented scale.But through enforcement in recent years and application, find the energy-conservation way wrapped to body of wall, fundamentally do not solve the power saving of construction wall space enclosing structure, and bring the various problems such as safety, construction, cost.
Novel from energy-conservation walling and heat insulation system thereof because of its obvious energy-saving effect, represent the direction of wall reform development, more and more get the nod.
Foam cement is mechanically fully foamed by blowing agent by the foamed system of foaming machine, and by the cementitious material such as foam and cement slurry Homogeneous phase mixing, then cast-in-place construction or mould molding is carried out by the pumping system of foaming machine, a kind of lightweight fireproof insulating material containing a large amount of sealed porosity formed through natural curing, its advantage is that stable performance, coefficient of deformation are little, not only fire protection flame retarding but also anti-aging, application life is relatively long, difficulty of construction is relatively little, engineering cost is relatively low, can cycling and reutilization.But foam cement is due to the limitation in its formula and technical matters, and most of article construction is single, and stable not, coefficient of thermal conductivity is higher, and heat-insulating property is not enough, and intensity is low, and pliability is poor, frangible rapid wear.
Extrusion moulding type polystyrene cystosepiment (be called for short XPS), it is that raw material adds other supplementary material with poly-containing thing with polystyrene resin, by heating mixing injecting catalyst simultaneously, then extrusion molding extrusion molding and the rigid foam plate that manufactures.
XPS has perfect closed honeycomb structure, this structure allow XPS plate have lightweight, intensity is high, pliability good, workability is good, not easily broken, compactness is high, good effect of heat insulation, water imbibition are extremely low (absorbing water hardly), the advantage of anti-aging (normally using almost without degradation and decomposition phenomenon), shortcoming is that fire safety performance is not enough, in practice of construction application, there is certain difficulty.
How XPS is combined with foam cement technology, overcome respective defect, comprehensively play both advantage, prepare a kind of Novel compound self heat-insulation building block, be the research topic that building material industry one is brand-new.
The existing XPS building block manufactured that combines with foam cement mainly contains two kinds of forms:
Be a composite heat insulation block for XPS-foam cement sandwich structure, the centre position of this building block is XPS warming plate, and both sides are foam cement; During preparation, first insert XPS warming plate in a mold, then in mould remaining space pouring foaming cement slurry, become insulation blocks through sawing after maintenance.
Another kind utilizes Making mold to become the middle foam cement building block having various hole, then XPS plate is cut into the shape matched with the hole of foam cement building block, inserts in the hole, form heat insulating composite building block.
These two kinds of structures, all must use particular manufacturing craft during the first manufacture foam cement building block, cost of production is higher, and the second heat insulation effect is also as one wishes not to the utmost, has much room for improvement, and still needs secondary isothermal holding as during outer wall body.
Summary of the invention
The technical issues that need to address of the present invention are just the defect overcoming existing single insulating wall material, a kind of preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block is provided, organic material XPS and inorganic material foam cement combine by it, form composite material, give full play to bi-material advantage separately, overcome respective deficiency, possess not easy to crack, long-term heat preservation is respond well, high-strength light, thermal insulation, sound-adsorbing sound-insulating hung, construction is simple, cost is low waits Good All-around Property, it is a kind of new material integrating building enclosure and wall thermal insulating function, meet the advanced direction of materials for wall development, be particularly suitable for the construction in passive type house.
For solving the problem, the present invention adopts following technical scheme:
The invention provides a kind of preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block, described preparation method comprises the following steps:
1), the preparation of XPS warming plate die body: adopt extrusion molding extrusion molding technique to prepare T-shaped wall corner building block formula XPS warming plate die body; XPS warming plate die body is the middle T-shaped stereochemical structure for cavity, is provided with link enhancement muscle in cavity;
2), the preparation of foam cement slurry;
3), integrated molding: the foam cement slurry be uniformly mixed is cast in XPS warming plate die body; Together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, become the composite thermal self-insulation building block of XPS-foam cement integration through maintenance.
The shape of described XPS warming plate die body is right angle T-shaped stereochemical structure, comprise five external surfaces and three end faces, be of a size of: long × perpendicular length × height × thick=100-30cm × 100-30cm × 100-30cm × 150-20 cm × 50-10cm of long × right horizontal edge of left horizontal edge, and the long half long for right horizontal edge of left horizontal edge, build by laying bricks or stones with the applicable building block fissure of displacement; Vertically be generally interior wall, its thickness is less than transverse gage, is connected with corresponding interior wall building block.
Five external surfaces of described XPS warming plate die body are provided with dovetail groove, and dovetail groove width is 0.5-5cm, and the degree of depth is 0.2-0.9cm, adjacent dovetail groove interval 1-5cm;
Two transverse end surfaces of described XPS warming plate die body and the external surface of a vertical end face are provided with the groove chimeric mutually with stalk building block and raised band, the position of groove and raised band in correspondence with each other, chimeric coupling can be realized, depth of groove and raised band height are 0.2-2cm, and width is 1-20cm; In order to reserved bonding agent, mortar or mortar gap, the die cavity of same specification building block, the little 0.1-0.5cm of left and right both ends of the surface raised band aspect ratio depth of groove, raised band width 0.1-1cm less of recess width.
Described XPS warming plate die body inner surface is provided with raised strip, and raised band width is 1-5cm, is highly 0.2-0.9cm, adjacent protrusion band interval 1-10cm.
Described XPS warming plate die body wall thickness is 2-8cm, and link enhancement muscle thickness is 1-5cm, and link enhancement muscle is spaced apart 5-50cm, and in XPS warming plate die body, remaining space is filled by the foam cement after hydration and hardening.
The end face of described reinforcing rib and the centre position of bottom surface are provided with the arc groove that radius is 4-30cm, and groove bottom to tip height is 4-30cm.
The dry volume density of described foam cement is 150-1600kg/m
3; The weight of foam cement raw material is: cement 30-90 part, slag micropowder 0-30 part, flyash 0-30 part, lime 0-10 part, water 25-35 part.
Described foam cement slurry preparation process is:
1) raw material mixing: by weight cement 30-90 part of foam cement raw material, slag micropowder 0-30 part, flyash 0-30 part, lime 0-10 part, drops into raw material in mixer, adds 25-35 part water, stirs 2-10 minute, obtains cement magma;
2) foam: by 0.2-0.8 part blowing agent and the mixing of 2-16 part water, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, foam and cement raw volume of slurry are than being 1:2-5;
3) stir again: stir 20 seconds-2 minutes again, obtain the foam cement slurry mixed.
Described blowing agent is plant proteins blowing agent or rosin based blowing agent.
The concrete steps of pouring foaming cement slurry are: be cast in by the foam cement slurry be uniformly mixed in XPS warming plate die body, described XPS warming plate die body bottom surface is closed, horizontal positioned, end face strikes off, leave standstill maintenance, after hydrated cementitious sclerosis to be foamed, obtain XPS-foam cement composite self-insulation T-shaped wall corner building block.
XPS-foam cement composite self-insulation T-shaped wall corner building block prepared by the present invention, with high-performance XPS for die body, filling foam cement in its die body, makes building block die body and foam cement be cured as same entirety and define heat insulation building block, and can sawing be the building block of job site required size.Organic material XPS and inorganic material foam cement combine by this composite self-insulation T-shaped wall corner building block, form composite material, give full play to bi-material advantage separately, overcome respective deficiency.This heat insulation building block external form is simple, be easy to processing, the notch of building block left and right end portions is fitted together to design and effectively can intercepts heat bridge, increase the thermal property of block material, possess high-strength light, thermal insulation, sound-adsorbing sound-insulating hung, the excellent combination property such as construction is simple, cost is low, be a kind of new material integrating building enclosure and wall thermal insulating function, meet the advanced direction of materials for wall technical development, be particularly suitable for the construction in passive type house.
Use composite self-insulation T-shaped wall corner building block prepared by the present invention, mate the building block of corresponding composite self-insulation stalk and L shape wall corner building block again, do not need to do wall thermal insulating process again, heat insulating material and building same life-span, not only can reach advanced building energy-saving standard, and outer wall cracking that existing external wall outer insulation exists can be overcome, the defect such as external thermal insulation comes off, insulation layer poor durability.According to southern and northern architecture enclosing revetment body to the different requirements of thermal transmittance, can increase or reduce the thickness of polyphenyl plate together with corresponding composite self-insulation wall corner building block, realize factorial praluction flexibly, both the Winter protection in the north had been applicable to, also be applicable to southern summer heat insulation, there is regional adaptability widely.
XPS-foam cement composite self-insulation T-shaped wall corner building block of the present invention, former and later two external surfaces of XPS warming plate die body are provided with dovetail groove, can strengthen its bonding with plastering mortar; XPS warming plate die body inner surface is provided with raised strip, can strengthen the connection of die body and foam cement; Two ends, the left and right external surface of XPS warming plate die body is provided with groove chimeric mutually and raised band, and the position of groove and raised band in correspondence with each other, can realize the chimeric of notch, effectively block heat bridge; In order to strengthen building by laying bricks or stones bonding strength horizontal between rear building block, bonding agent, mortar or mortar gap between die body left and right both ends of the surface raised band and groove, can be reserved; In order to strengthen the supporting capacity of XPS die body to the foam cement slurry injected, link enhancement muscle is set between die body front and rear wall; In order to increase the globality of foam cement in die cavity, at the groove of the end face and the prefabricated filling foam cement of centre position, bottom surface difference that strengthen muscle.In die body, the foam cement of filling is raw materials used is: cement, slag micropowder, flyash, lime and water.Block strength and coefficient of thermal conductivity regulate and control by the unit weight adjusting foam cement.
Accompanying drawing explanation
Fig. 1 is XPS warming plate die body structural representation.
Fig. 2 is the composite thermal self-insulation building block structural representation of XPS-foam cement integration.
Detailed description of the invention
embodiment 1
1), the preparation of XPS warming plate die body:
Extrusion molding extrusion molding technique is adopted to prepare T-shaped wall corner building block formula XPS warming plate die body; The structure of XPS warming plate die body as shown in Figure 1, described XPS warming plate die body is the three-dimensional body structure 1 of the middle right angle T-shaped for cavity, long × perpendicular length × height × thick=30cm × 60cm × 90cm × 100 cm × 20cm of long × right horizontal edge of left horizontal edge, and the long half long for right horizontal edge of left horizontal edge, build by laying bricks or stones with the applicable building block fissure of displacement; Vertically be generally interior wall, its thickness can be less than transverse gage, is connected with corresponding interior wall building block.Described XPS warming plate die body wall thickness is 5cm, is provided with link enhancement muscle 2 in cavity; Link enhancement muscle thickness is 5cm, and link enhancement muscle is spaced apart 10cm.
Strengthen upper and lower two end faces of muscle and be respectively arranged with groove 3, groove height is 10cm.
Described XPS warming plate die body five external surfaces are provided with dovetail groove 4, and dovetail groove width is 2cm, and the degree of depth is 0.4cm, adjacent dovetail groove interval 3cm.
Described XPS warming plate die body three end face external surfaces are provided with the groove 5 chimeric mutually with stalk building block and raised band 6, and in correspondence with each other, can realize chimeric coupling, depth of groove and raised band height are 1cm, and width is 10cm in the position of groove and raised band; In order to reserved bonding agent, mortar or mortar gap, the die body of same specification building block, the little 0.3cm of left and right both ends of the surface raised band aspect ratio depth of groove, raised band width 0.5cm less of recess width.
Described XPS warming plate die body inner surface is provided with raised strip 7, and raised band width is 3cm, is highly 0.6cm, adjacent protrusion band interval 6cm.
2), foam cement slurry preparation:
Take 42.5 Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, drop in mixer, and add water 20kg, stir three minutes, obtain cement magma;
Simultaneously by 0.5kg plant proteins blowing agent and the mixing of 10 kg water, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, foam and cement raw volume of slurry are than being 1:2.5; Stir 30 seconds again, mix, obtain foam cement slurry;
3) (bottom surface is closed, foam cement slurry to be poured into above-mentioned XPS warming plate die body, horizontal positioned) in, end face strikes off, humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, become the composite thermal self-insulation building block of the XPS-foam cement integration that appearance and size is length × height × thick=60cm × 36cm × 24cm.As shown in Figure 2.
The present invention with XPS warming plate die body for mould, without particular manufacturing craft.
4), the performance indications of composite thermal self-insulation building block:
Compressive strength: 7.6 MPa;
Water absorption rate: 8 %;
Mean coefficient of heat conductivity: 0.06 w/(m.k);
Apparent density: 680 kg/m
3.
comparative example 1xPS-foam cement
the contrast test of outer wall self heat-preserving system and embodiment 1
XPS-foam cement outer wall self heat-preserving system selects both sides to be foam cement, and centre is the composite block of XPS warming plate (different from the XPS in embodiment 1, to be the XPS warming plate with cylinder groove on plate face), does contrast test with the building block in embodiment 1.The enforcement of contrast building block:
1), the preparation of XPS warming plate:
, with the cylinder groove of concavo-convex symmetry, can combine closely with foam cement in XPS warming plate both sides.
The thickness of described warming plate is 5cm, and cylinder groove diameter is 2cm, is spaced apart 10cm; The sclerosis foam cement thickness of described warming plate both sides is 12cm.
2), foam cement slurry preparation:
Take 42.5 Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, Admixture (early strength admixture 1.0 kg, waterproof agent 1.0 kg, water reducing agent 0.46 kg, thickener 0.04 kg) 3 kg, drop in mixer, and add water 20kg, stir three minutes, obtain cement slurry; 0.5kg blowing agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, then stirs 30 seconds, mix, obtain foam cement slurry;
Foam cement slurry is poured in the particular manufacturing craft of insertion XPS warming plate in advance, end face strikes off, humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, after sawing, become the composite thermal self-insulation building block of the XPS-foam cement integration that appearance and size is length × height × thick=60cm × 36cm × 24cm.This building block preparation needs to be equipped with particular manufacturing craft.
3), the performance indications of composite thermal self-insulation building block: compressive strength: 7.8 MPa;
Water absorption rate: 10 %;
Mean coefficient of heat conductivity: 0.12 w/(m.k)
Apparent density: 700 kg/m
3.
the contrast test of the simple foam cement building block of comparative example 2 and embodiment 1.
Prepare simple foam cement building block by the proportion of raw material of foam cement in embodiment 1 and building block dimensions, carry out contrast test.The enforcement of contrast building block:
1), the preparation of foam cement building block:
Take 42.5 Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, Admixture (early strength admixture 1.0 kg, waterproof agent 1.0 kg, water reducing agent 0.46 kg, thickener 0.04 kg) 3 kg, drop in mixer, and add water 20kg, stir three minutes, obtain cement slurry; 0.5kg blowing agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, then stirs 30 seconds, mix, obtain foam cement slurry;
Be poured in particular manufacturing craft by foam cement slurry, end face strikes off, and humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, and sawing becomes the foam cement building block that appearance and size is length × height × thick=60cm × 36cm × 24cm.This building block preparation needs to be equipped with particular manufacturing craft.
2), the performance indications of foam cement building block:
Compressive strength: 8.5 MPa;
Water absorption rate: 11 %;
Mean coefficient of heat conductivity: 0.30 w/(m.k)
Apparent density: 750 kg/m
3.
the contrast test of comparative example 3 other materials composite block and embodiment 1.
What select is the insulation blocks of the building block of foam cement Prefabricated porous and XPS compound, i.e. the building block mentioned of background technology part.Utilize Making mold to become the middle foam cement building block having various hole, then XPS plate is cut into the shape matched with the hole of foam cement building block, insert in the hole, form composite heat insulation block, do contrast test with embodiment 1.
The enforcement of contrast building block:
1) preparation of the insulation blocks of the building block of foam cement Prefabricated porous and XPS compound:
Take 42.5 Portland cement 60kg, S95 level slag micropowder 15 kg respectively, second class powered coal ash 15 kg, lime 5 kg, Admixture (early strength admixture 1.0 kg, waterproof agent 1.0 kg, water reducing agent 0.46 kg, thickener 0.04 kg) 3 kg, drop in mixer, and add water 25kg, stir three minutes, obtain cement slurry; 0.5kg blowing agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, then stirs 2 minutes, mix, obtain foam cement slurry;
The foam cement slurry be uniformly mixed is cast in the particular manufacturing craft of porous building-brick, end face strikes off, humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, and preparation becomes the foam cement porous building-brick of appearance and size for length × height × thick=60cm × 36cm × 24cm.Again XPS plate is cut into the shape matched with the hole of foam cement porous building-brick, insert in the hole, form composite heat insulation block.This building block preparation needs to be equipped with particular manufacturing craft.
2) performance indications of composite self-insulation XPS-foam cement composite block:
Compressive strength: 5.8 MPa;
Water absorption rate: 17 %;
Mean coefficient of heat conductivity: 0.18 w/(m.k)
Apparent density: 750 kg/m
3.
embodiment 2
1), the preparation of XPS warming plate die body:
Extrusion molding extrusion molding technique is adopted to prepare T-shaped wall corner building block formula XPS warming plate die body; The structure of XPS warming plate die body as shown in Figure 1, described XPS warming plate die body is the three-dimensional body structure 1 of the middle right angle T-shaped for cavity, long × perpendicular length × height × thick=30cm × 60cm × 90cm × 100 cm × 20cm of long × right horizontal edge of left horizontal edge, and the long half long for right horizontal edge of left horizontal edge, build by laying bricks or stones with the applicable building block fissure of displacement; Vertically be generally interior wall, its thickness can be less than transverse gage, is connected with corresponding interior wall building block.Described XPS warming plate die body wall thickness is 3cm, is provided with link enhancement muscle 2 in cavity; Link enhancement muscle thickness is 1cm, and link enhancement muscle is spaced apart 5cm.
Strengthen upper and lower two end faces of muscle and be respectively arranged with groove 3, groove height is 4cm.
Described XPS warming plate die body five external surfaces are provided with dovetail groove 4, and dovetail groove width is 0.5cm, and the degree of depth is 0.2cm, adjacent dovetail groove interval 1cm.
Described XPS warming plate die body three end face external surfaces are provided with groove 5 chimeric mutually and raised band 6, and in correspondence with each other, can realize chimeric coupling, depth of groove and raised band height are 0.2cm, and width is 1cm in the position of groove and raised band; In order to reserved bonding agent, mortar or mortar gap, the die body of same specification building block, the little 0.1cm of left and right both ends of the surface raised band aspect ratio depth of groove, raised band width 0.1cm less of recess width.
Described XPS warming plate die body inner surface is provided with raised strip 7, and raised band width is 1cm, is highly 0.2cm, adjacent protrusion band interval 1cm.
2), foam cement slurry preparation:
Take 42.5 Portland cement 30kg, drop in mixer, and add water 15kg, stir three minutes, obtain cement magma;
Simultaneously by 0.2kg rosin based blowing agent and the mixing of 2kg water, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, foam and cement raw volume of slurry are than being 1:3; Stir 20 seconds again, mix, obtain foam cement slurry;
3) (bottom surface is closed, foam cement slurry to be poured into above-mentioned XPS warming plate die body, horizontal positioned) in, end face strikes off, humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, become the composite thermal self-insulation building block of the XPS-foam cement integration that appearance and size is length × height × thick=60cm × 36cm × 24cm.As shown in Figure 2.
embodiment 3
1), the preparation of XPS warming plate die body:
Extrusion molding extrusion molding technique is adopted to prepare T-shaped wall corner building block formula XPS warming plate die body; The structure of XPS warming plate die body as shown in Figure 1, described XPS warming plate die body is the three-dimensional body structure 1 of the middle right angle T-shaped for cavity, long × perpendicular length × height × thick=30cm × 60cm × 90cm × 100 cm × 20cm of long × right horizontal edge of left horizontal edge, and the long half long for right horizontal edge of left horizontal edge, build by laying bricks or stones with the applicable building block fissure of displacement; Vertically be generally interior wall, its thickness can be less than transverse gage, is connected with corresponding interior wall building block.Described XPS warming plate die body wall thickness is 8cm, is provided with link enhancement muscle 2 in cavity; Link enhancement muscle thickness is 5cm, and link enhancement muscle is spaced apart 40cm.
Strengthen upper and lower two end faces of muscle and be respectively arranged with groove 3, groove height is 25cm.
Described XPS warming plate die body five external surfaces are provided with dovetail groove 4, and dovetail groove width is 5cm, and the degree of depth is 0.9cm, adjacent dovetail groove interval 5cm.
Described XPS warming plate die body three end face external surfaces are provided with groove 5 chimeric mutually and raised band 6, and in correspondence with each other, can realize chimeric coupling, depth of groove and raised band height are 2cm, and width is 20cm in the position of groove and raised band; In order to reserved bonding agent, mortar or mortar gap, the die body of same specification building block, the little 0.5cm of left and right both ends of the surface raised band aspect ratio depth of groove, raised band width 0.9cm less of recess width.
Described XPS warming plate die body inner surface is provided with raised strip 7, and raised band width is 5cm, is highly 0.9cm, adjacent protrusion band interval 10cm.
2), foam cement slurry preparation:
Take 42.5 Portland cement 45kg, S95 level slag micropowder 15 kg respectively, second class powered coal ash 15 kg, lime 5 kg, drop in mixer, and add water 30kg, stir 10 minutes, obtain cement magma;
Simultaneously by 0.8kg plant proteins blowing agent and the mixing of 16 kg water, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, foam and cement raw volume of slurry are than being 1:5; Stir 2 minutes again, mix, obtain foam cement slurry;
3) (bottom surface is closed, foam cement slurry to be poured into above-mentioned XPS warming plate die body, horizontal positioned) in, end face strikes off, humidity more than 95%, temperature more than 65 DEG C leave standstill more than maintenance 6.5h, together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, become the composite thermal self-insulation building block of the XPS-foam cement integration that appearance and size is length × height × thick=60cm × 36cm × 24cm.As shown in Figure 2.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (10)
1. a preparation method for XPS-foam cement composite self-insulation T-shaped wall corner building block, is characterized in that, described preparation method comprises the following steps:
1), the preparation of XPS warming plate die body: adopt extrusion molding extrusion molding technique to prepare T-shaped wall corner building block formula XPS warming plate die body; XPS warming plate die body is the middle T-shaped stereochemical structure for cavity, is provided with link enhancement muscle in cavity;
2), the preparation of foam cement slurry;
3), integrated molding: the foam cement slurry be uniformly mixed is cast in XPS warming plate die body; Together with foam cement after hydration and hardening is settable cementitious with XPS warming plate die body, become the composite thermal self-insulation building block of XPS-foam cement integration through maintenance.
2. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 1, it is characterized in that: the shape of described XPS warming plate die body is right angle T-shaped stereochemical structure, comprise five external surfaces and three end faces, be of a size of: long × perpendicular length × height × thick=100-30cm × 100-30cm × 100-30cm × 150-20 cm × 50-10cm of long × right horizontal edge of left horizontal edge, and the long half long for right horizontal edge of left horizontal edge, build by laying bricks or stones with the applicable building block fissure of displacement; Vertically be generally interior wall, its thickness is less than transverse gage, is connected with corresponding interior wall building block.
3. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 2, it is characterized in that: five external surfaces of described XPS warming plate die body are provided with dovetail groove, dovetail groove width is 0.5-5cm, and the degree of depth is 0.2-0.9cm, adjacent dovetail groove interval 1-5cm;
Two transverse end surfaces of described XPS warming plate die body and the external surface of a vertical end face are provided with the groove chimeric mutually with stalk building block and raised band, the position of groove and raised band in correspondence with each other, chimeric coupling can be realized, depth of groove and raised band height are 0.2-2cm, and width is 1-20cm; In order to reserved bonding agent, mortar or mortar gap, the die cavity of same specification building block, the little 0.1-0.5cm of left and right both ends of the surface raised band aspect ratio depth of groove, raised band width 0.1-1cm less of recess width.
4. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 3, it is characterized in that: described XPS warming plate die body inner surface is provided with raised strip, raised band width is 1-5cm, is highly 0.2-0.9cm, adjacent protrusion band interval 1-10cm.
5. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 4, it is characterized in that: described XPS warming plate die body wall thickness is 2-8cm, link enhancement muscle thickness is 1-5cm, link enhancement muscle is spaced apart 5-50cm, and in XPS warming plate die body, remaining space is filled by the foam cement after hydration and hardening.
6. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 5, it is characterized in that: the end face of described reinforcing rib and the centre position of bottom surface are provided with the arc groove that radius is 4-30cm, groove bottom to tip height is 4-30cm.
7. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 6, is characterized in that: the dry volume density of described foam cement is 150-1600kg/m
3; The weight of foam cement raw material is: cement 30-90 part, slag micropowder 0-30 part, flyash 0-30 part, lime 0-10 part, water 25-35 part.
8. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 7, it is characterized in that, described foam cement slurry preparation process is:
1), raw material mixing: by weight cement 30-90 part of foam cement raw material, slag micropowder 0-30 part, flyash 0-30 part, lime 0-10 part, drops into raw material in mixer, adds 25-35 part water, stir 2-10 minute, obtain cement magma;
2), foaming: by 0.2-0.8 part blowing agent and the mixing of 2-16 part water, utilize foaming machine to manufacture foam, the foam produced is introduced mixer, foam and cement raw volume of slurry are than being 1:2-5;
3) stir again: stir 20 seconds-2 minutes again, obtain the foam cement slurry mixed.
9. the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block as claimed in claim 8, it is characterized in that, described blowing agent is plant proteins blowing agent or rosin based blowing agent.
10. as claim 1-9 arbitrary as described in the preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block, it is characterized in that, the concrete steps of pouring foaming cement slurry are: be cast in by the foam cement slurry be uniformly mixed in XPS warming plate die body, described XPS warming plate die body bottom surface is closed, horizontal positioned, end face strikes off, and leaves standstill maintenance, after hydrated cementitious sclerosis to be foamed, obtain XPS-foam cement composite self-insulation T-shaped wall corner building block.
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| CN101338586A (en) * | 2008-08-25 | 2009-01-07 | 卢文成 | Plastic-based hollow section bar and inorganic foamed cement composite body and producing method thereof |
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| WO2012093981A1 (en) * | 2011-01-04 | 2012-07-12 | Hazar Engin | Thermal and sound insulated structural member |
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