CN104563379A - Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation vertical wall block - Google Patents
Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation vertical wall block Download PDFInfo
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- CN104563379A CN104563379A CN201410822321.XA CN201410822321A CN104563379A CN 104563379 A CN104563379 A CN 104563379A CN 201410822321 A CN201410822321 A CN 201410822321A CN 104563379 A CN104563379 A CN 104563379A
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- 239000006260 foam Substances 0.000 title claims abstract description 128
- 239000004568 cement Substances 0.000 title claims abstract description 127
- 238000009413 insulation Methods 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 39
- 229920006248 expandable polystyrene Polymers 0.000 title abstract 10
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000010792 warming Methods 0.000 claims description 74
- 239000002002 slurry Substances 0.000 claims description 39
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 210000003205 muscle Anatomy 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 18
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- 239000004570 mortar (masonry) Substances 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 10
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 10
- 239000004571 lime Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 239000011469 building brick Substances 0.000 claims description 8
- 230000036571 hydration Effects 0.000 claims description 8
- 238000006703 hydration reaction Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
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- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 108010064851 Plant Proteins Proteins 0.000 claims description 4
- 235000021118 plant-derived protein Nutrition 0.000 claims description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 3
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000003063 flame retardant Substances 0.000 abstract 1
- 239000004794 expanded polystyrene Substances 0.000 description 78
- 238000010276 construction Methods 0.000 description 10
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- 229910010272 inorganic material Inorganic materials 0.000 description 2
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- 229920006328 Styrofoam Polymers 0.000 description 1
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Abstract
The invention discloses a preparation method for an EPS (expandable polystyrene)-foam cement composite self-insulation vertical wall block. The composite block prepared with the method comprises two parts, namely an EPS insulation board mould body and foam cement, wherein the EPS insulation board mould body adopts a cuboid structure with a hollow cavity in the middle; connecting stiffening ribs are arranged in the hollow cavity; a hollow cavity in an EPS insulation board is filled with the foam cement, and the foam cement is cured and bonded together with the EPS insulation board mould body to serve as a sandwich material. The EPS insulation board of the block is tightly bonded with the foam cement, so that the block is unlikely to crack and good in long-term stability; the block is good in thermal insulation effect, so that a wall body does not need to be subjected to secondary thermal insulation treatment; the grade-B1 EPS insulation board is good in fire-retardant property; the block is simple in production process, convenient to construct and relatively low in comprehensive cost.
Description
Technical field
The present invention relates to building material technical field, be specifically related to the preparation method of a kind of EPS-foam cement composite self-insulation stalk 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 environmental 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 building enclosure, 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 whipping agent by the foamed system of foaming machine, and by the gelling 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, deformation coefficient are little, not only fire protection flame retarding but also anti-aging, work-ing 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, thermal conductivity is higher, and heat-insulating property is not enough, and intensity is low, and snappiness is poor, frangible rapid wear.
Polystyrene foam (Expanded Polystyrene is called for short EPS) is a kind of light type high-molecule polymkeric substance.Organic EPS lagging material have lightweight, snappiness good, workability good, not easily broken, compactness is high, the advantage of good effect of heat insulation, shortcoming is that fire safety performance is not enough, deformation coefficient is large, not ageing-resistant, in practice of construction application, there is certain difficulty.
How EPS 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 EPS building block manufactured that combines with foam cement mainly contains two kinds of forms:
Be a composite heat insulation block for EPS-foam cement sandwich structure, the mid-way of this building block is EPS warming plate, and both sides are foam cement; During preparation, first insert EPS 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 EPS 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, production cost 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, the preparation method of a kind of EPS-foam cement composite self-insulation stalk building block is provided, organic materials EPS and inorganic materials foam cement combine by it, form matrix 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, heat insulating, sound-adsorbing sound-insulating hung, construction is simple, cost is low waits Good All-around Property, it is a kind of novel 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 the preparation method of a kind of EPS-foam cement composite self-insulation stalk building block, described preparation method comprises the following steps:
1) preparation of EPS warming plate die body: prepare stalk building-brick type EPS warming plate die body with EPS material; Described EPS warming plate die body is the middle rectangular structure for cavity, is provided with link enhancement muscle in cavity;
2) preparation of foam cement slurry;
3) integrated molding: the foam cement slurry be uniformly mixed is cast in EPS warming plate die body; Together with foam cement after hydration and hardening is settable cementitious with EPS warming plate die body, become the composite thermal self-insulation building block of EPS-foam cement integration through maintenance.
Described former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent, and dovetail-indent width is 0.5-5cm, and the degree of depth is 0.2-0.9cm, adjacent dovetail-indent interval 1-5cm.
Two ends, described EPS warming plate die body left and right outside surface is provided with groove chimeric mutually and raised band, and in correspondence with each other, can realize chimeric coupling, depth of groove and raised band height are 0.2-2cm, and width is 1-20cm in the position of groove and raised band; In order to reserved caking agent, mortar or mortar gap, the die body 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 EPS warming plate die body internal 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 EPS 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 EPS warming plate die body, remaining space is filled by the foam cement after hydration and hardening.
Described link enhancement muscle and EPS warming plate die body inwall connecting portion are step structure, and ladder height is 3-4cm; Upper and lower two end faces of strength bar are respectively arranged with groove, and groove 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 stirrer, adds 25-35 part water, stirs 2-10 minute, obtains cement magma;
2) foam: by 0.2-0.8 part whipping agent and the mixing of 2-16 part water, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 whipping agent is plant proteins whipping agent or rosin based whipping agent.
The concrete steps of pouring foaming cement slurry are: be cast in by the foam cement slurry be uniformly mixed in EPS warming plate die body, described EPS 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 the building block of EPS-foam cement composite self-insulation stalk.
EPS-foam cement composite self-insulation stalk building block prepared by the present invention, with high-performance EPS 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 working-yard desired size.Organic materials EPS and inorganic materials foam cement combine by this composite self-insulation stalk building block, form matrix 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, heat insulating, sound-adsorbing sound-insulating hung, the excellent over-all properties such as construction is simple, cost is low, be a kind of novel 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 stalk building block prepared by the present invention, mate corresponding composite self-insulation T-shaped wall corner building block and L shape wall corner building block again, do not need to do wall thermal insulating process again, lagging material and buildings 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, thermal insulation layer poor durability.According to southern and northern architecture enclosing revetment body to the different requirements of heat transfer coefficient, can increase or reduce the thickness of styrofoam 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.
EPS-foam cement composite self-insulation stalk of the present invention building block, former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent, can strengthen its bonding with plastering mortar; EPS warming plate die body internal surface is provided with raised strip, can strengthen the connection of die body and foam cement; Two ends, the left and right outside surface of EPS 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 strength of joint horizontal between rear building block, caking 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 EPS 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 body, the step structure of filling foam cement will be designed between upper and lower for strength bar two ends and die body wall.In die body, the foam cement of filling is raw materials used is: cement, slag micropowder, flyash, lime and water.Block strength and thermal conductivity regulate and control by the unit weight adjusting foam cement.
Accompanying drawing explanation
Fig. 1 is EPS warming plate die body structural representation.
Fig. 2 is the composite thermal self-insulation building block structural representation of EPS-foam cement integration.
Embodiment
embodiment 1
1), the preparation of EPS warming plate die body:
Stalk building-brick type EPS warming plate die body is prepared with EPS material; As shown in Figure 1, described EPS warming plate die body is the middle rectangular structure 1 for cavity to the structure of EPS warming plate die body, length × height × thick=60cm × 36cm × 24cm, and described EPS 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.
Described link enhancement muscle and EPS warming plate die body inwall connecting portion are step structure 3, and ladder height is 3cm; Upper and lower two end faces of strength bar are respectively arranged with groove 4, and groove height is 10cm.
Described former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent 5, and dovetail-indent width is 2cm, and the degree of depth is 0.4cm, adjacent dovetail-indent interval 3cm.
Two ends, described EPS warming plate die body left and right outside surface is provided with groove 6 chimeric mutually and raised band 7, 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 caking 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 EPS warming plate die body internal surface is provided with raised strip 8, and raised band width is 3cm, is highly 0.6cm, adjacent protrusion band interval 6cm.
2), foam cement slurry preparation:
Take 42.5 ordinary Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, drop in stirrer, and add water 20kg, stir three minutes, obtain cement magma;
Simultaneously by 0.5kg plant proteins whipping agent and the mixing of 10 kg water, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 EPS 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 EPS warming plate die body, become the composite thermal self-insulation building block of the EPS-foam cement integration that physical dimension is length × height × thick=60cm × 36cm × 24cm.As shown in Figure 2.
The present invention with EPS warming plate die body for mould, without particular manufacturing craft.
4), the performance index of composite thermal self-insulation building block:
Ultimate compression strength: 7.6 MPa;
Water-intake rate: 8 %;
Mean coefficient of heat conductivity: 0.06 w/(m.k);
Apparent density: 680 kg/m
3.
the simultaneous test of comparative example 1 polystyrene foam outer wall self heat-preserving system and embodiment 1
Polystyrene foam outer wall self heat-preserving system selects both sides to be foam cement, and centre is the composite block of EPS warming plate (different from the EPS in embodiment 1, to be the EPS warming plate with cylinder groove on plate face), does simultaneous test with the building block in embodiment 1.The enforcement of contrast building block:
1), the preparation of EPS warming plate:
, with the cylinder groove of concavo-convex symmetry, can combine closely with foam cement in EPS 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 ordinary Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, admixture (hardening accelerator 1.0 kg, water-resisting agent 1.0 kg, water reducer 0.46 kg, thickening material 0.04 kg) 3 kg, drop in stirrer, and add water 20kg, stir three minutes, obtain cement slurry; 0.5kg whipping agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, then stirs 30 seconds, mix, obtain foam cement slurry;
Foam cement slurry is poured in the particular manufacturing craft of insertion EPS 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 EPS warming plate die body, after sawing, become the composite thermal self-insulation building block of the EPS-foam cement integration that physical dimension is length × height × thick=60cm × 36cm × 24cm.This building block preparation needs to be equipped with particular manufacturing craft.
3), the performance index of composite thermal self-insulation building block: ultimate compression strength: 7.8 MPa;
Water-intake rate: 10 %;
Mean coefficient of heat conductivity: 0.12 w/(m.k)
Apparent density: 700 kg/m
3.
the simultaneous 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 simultaneous test.The enforcement of contrast building block:
1), the preparation of foam cement building block:
Take 42.5 ordinary Portland cement 48kg, S95 level slag micropowder 22 kg respectively, second class powered coal ash 23 kg, lime 4 kg, admixture (hardening accelerator 1.0 kg, water-resisting agent 1.0 kg, water reducer 0.46 kg, thickening material 0.04 kg) 3 kg, drop in stirrer, and add water 20kg, stir three minutes, obtain cement slurry; 0.5kg whipping agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 physical dimension is length × height × thick=60cm × 36cm × 24cm.This building block preparation needs to be equipped with particular manufacturing craft.
2), the performance index of foam cement building block:
Ultimate compression strength: 8.5 MPa;
Water-intake rate: 11 %;
Mean coefficient of heat conductivity: 0.30 w/(m.k)
Apparent density: 750 kg/m
3.
the simultaneous 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 EPS 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 EPS 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 simultaneous test with embodiment 1.
The enforcement of contrast building block:
The preparation of the insulation blocks of the building block of foam cement Prefabricated porous and EPS compound:
Take 42.5 ordinary Portland cement 60kg, S95 level slag micropowder 15 kg respectively, second class powered coal ash 15 kg, lime 5 kg, admixture (hardening accelerator 1.0 kg, water-resisting agent 1.0 kg, water reducer 0.46 kg, thickening material 0.04 kg) 3 kg, drop in stirrer, and add water 25kg, stir three minutes, obtain cement slurry; 0.5kg whipping agent and 10 kg water are mixed in 1:20 ratio simultaneously, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 physical dimension for length × height × thick=60cm × 36cm × 24cm.Again EPS 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 index of composite self-insulation sand aerated concrete block:
Ultimate compression strength: 5.8 MPa;
Water-intake rate: 17 %;
Mean coefficient of heat conductivity: 0.18 w/(m.k)
Apparent density: 750 kg/m
3.
embodiment 2
1), the preparation of EPS warming plate die body:
Stalk building-brick type EPS warming plate die body is prepared with EPS material; As shown in Figure 1, described EPS warming plate die body is the middle rectangular structure 1 for cavity to the structure of EPS warming plate die body, length × height × thick=60cm × 36cm × 24cm, and described EPS 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.
Described link enhancement muscle and EPS warming plate die body inwall connecting portion are step structure 3, and ladder height is 4cm; Upper and lower two end faces of strength bar are respectively arranged with groove 4, and groove height is 4cm.
Described former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent 5, and dovetail-indent width is 0.5cm, and the degree of depth is 0.2cm, adjacent dovetail-indent interval 1cm.
Two ends, described EPS warming plate die body left and right outside surface is provided with groove 6 chimeric mutually and raised band 7, 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 caking 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 EPS warming plate die body internal surface is provided with raised strip 8, and raised band width is 1cm, is highly 0.2cm, adjacent protrusion band interval 1cm.
2), foam cement slurry preparation:
Take 42.5 ordinary Portland cement 30kg, drop in stirrer, and add water 15kg, stir three minutes, obtain cement magma;
Simultaneously by 0.2kg rosin based whipping agent and the mixing of 2kg water, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 EPS 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 EPS warming plate die body, become the composite thermal self-insulation building block of the EPS-foam cement integration that physical dimension is length × height × thick=60cm × 36cm × 24cm.As shown in Figure 2.
embodiment 3
1), the preparation of EPS warming plate die body:
Stalk building-brick type EPS warming plate die body is prepared with EPS material; As shown in Figure 1, described EPS warming plate die body is the middle rectangular structure 1 for cavity to the structure of EPS warming plate die body, length × height × thick=60cm × 36cm × 24cm, and described EPS 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.
Described link enhancement muscle and EPS warming plate die body inwall connecting portion are step structure 3, and ladder height is 4cm; Upper and lower two end faces of strength bar are respectively arranged with groove 4, and groove height is 25cm.
Described former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent 5, and dovetail-indent width is 5cm, and the degree of depth is 0.9cm, adjacent dovetail-indent interval 5cm.
Two ends, described EPS warming plate die body left and right outside surface is provided with groove 6 chimeric mutually and raised band 7, 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 caking 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 EPS warming plate die body internal surface is provided with raised strip 8, and raised band width is 5cm, is highly 0.9cm, adjacent protrusion band interval 10cm.
2), foam cement slurry preparation:
Take 42.5 ordinary Portland cement 45kg, S95 level slag micropowder 15 kg respectively, second class powered coal ash 15 kg, lime 5 kg, drop in stirrer, and add water 30kg, stir 10 minutes, obtain cement magma;
Simultaneously by 0.8kg plant proteins whipping agent and the mixing of 16 kg water, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 EPS 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 EPS warming plate die body, become the composite thermal self-insulation building block of the EPS-foam cement integration that physical dimension 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 EPS-foam cement composite self-insulation stalk building block, is characterized in that, described preparation method comprises the following steps:
1), the preparation of EPS warming plate die body: prepare stalk building-brick type EPS warming plate die body with EPS material; Described EPS warming plate die body is the middle rectangular 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 EPS warming plate die body; Together with foam cement after hydration and hardening is settable cementitious with EPS warming plate die body, become the composite thermal self-insulation building block of EPS-foam cement integration through maintenance.
2. the preparation method of EPS-foam cement composite self-insulation stalk building block as claimed in claim 1, it is characterized in that: described former and later two outside surfaces of EPS warming plate die body are provided with dovetail-indent, dovetail-indent width is 0.5-5cm, and the degree of depth is 0.2-0.9cm, adjacent dovetail-indent interval 1-5cm.
3. the preparation method of EPS-foam cement composite self-insulation stalk building block as claimed in claim 2, it is characterized in that: two ends, described EPS warming plate die body left and right outside surface is provided with groove chimeric mutually 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 caking agent, mortar or mortar gap, the die body 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 EPS-foam cement composite self-insulation stalk building block as claimed in claim 3, it is characterized in that: described EPS warming plate die body internal 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 EPS-foam cement composite self-insulation stalk building block as claimed in claim 4, it is characterized in that: described EPS 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 EPS warming plate die body, remaining space is filled by the foam cement after hydration and hardening.
6. the preparation method of EPS-foam cement composite self-insulation stalk building block as claimed in claim 5, is characterized in that: described link enhancement muscle and EPS warming plate die body inwall connecting portion are step structure, and ladder height is 3-4cm; Upper and lower two end faces of strength bar are respectively arranged with groove, and groove height is 4-30cm.
7. the preparation method of EPS-foam cement composite self-insulation stalk 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 EPS-foam cement composite self-insulation stalk 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 stirrer, adds 25-35 part water, stir 2-10 minute, obtain cement magma;
2), foaming: by 0.2-0.8 part whipping agent and the mixing of 2-16 part water, utilize foaming machine to manufacture foam, the foam produced is introduced stirrer, 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 EPS-foam cement composite self-insulation stalk building block as claimed in claim 8, it is characterized in that, described whipping agent is plant proteins whipping agent or rosin based whipping agent.
10. as claim 1-9 arbitrary as described in the preparation method of EPS-foam cement composite self-insulation stalk 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 EPS warming plate die body, described EPS 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 the building block of EPS-foam cement composite self-insulation stalk.
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| CN107098720A (en) * | 2017-05-02 | 2017-08-29 | 泰安鲁珠保温建材有限公司 | A kind of zigzag lightweight concrete heat insulating composite building block, formula and preparation method thereof |
| CN109653346A (en) * | 2019-02-01 | 2019-04-19 | 马清浩 | A kind of method of construction |
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