CN203654591U - Foam cement-filled concrete composite thermal-insulating block - Google Patents

Foam cement-filled concrete composite thermal-insulating block Download PDF

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Publication number
CN203654591U
CN203654591U CN201320878570.1U CN201320878570U CN203654591U CN 203654591 U CN203654591 U CN 203654591U CN 201320878570 U CN201320878570 U CN 201320878570U CN 203654591 U CN203654591 U CN 203654591U
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China
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cavity
foam cement
fin
concrete
heat insulation
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CN201320878570.1U
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Chinese (zh)
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王武祥
张磊蕾
王爱军
廖礼平
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中国建筑材料科学研究总院
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    • Y02A30/247

Abstract

The utility model discloses a foam cement-filled concrete composite thermal-insulating block, and relates to a filled thermal-insulating block. The foam cement-filled concrete composite thermal-insulating block comprises a concrete base body with a cavity, wherein at least one air space layer penetrating through the concrete base body is formed in the inner side of at least one outer surface of the concrete base body; at least one cavity of which cross-sectional area is greater than that of the air gap layer is also formed inside the concrete base body; a foam cement filling body is arranged inside the cavity. The block has the characteristics of being excellent in thermal performance, noncombustible, good in durability, stable in quality and performance, economic and applicable and the like, meanwhile, solid wastes such as construction wastes and coal ashes can be fully utilized, cement is saved, the effects of saving energy and reducing emission, and protecting the environment are achieved, and the requirements for developing circular economy, low-carbon economy and social sustainable development strategy are accorded. The foam cement-filled concrete composite thermal-insulating block is light in weight, good in heat preservation and heat insulation effects, good in soundproof effect, high in specific strength, noncombustible and impermeable, can be widely applied to interior and exterior wall bodies of urban frame structure buildings and rural buildings, and is convenient to construct, and stable in performance, and the labor intensity and the construction cost are greatly reduced.

Description

A kind of foam cement fill-type concrete composite heat insulation building blocks

Technical field

The utility model relates to a kind of energy-saving building wall material, relates in particular to a kind of fill-type concrete composite heat insulation building blocks.

Background technology

Along with the pushing forward comprehensively and deepening constantly of China's Building Energy-saving Work, multi-form heat insulation system has been proposed to active demand, structure-function integration becomes the important directions of structural system development and application.Structure and energy saving integrated, not only enriched architectural structure system, also can solve preferably heat insulation system and the same life problems of building, promoted China's materials for wall innovation and Building Energy-saving Work.

Concrete small block manufacturing process is energy-conservation, joint soil, sharp useless not only, be conducive to environmental protection, and construction intensity is low, speed fast, comprehensive cost economy, belongs to China's encourage growth class novel wall material.But concrete small block thermal property is poor, its thermal and insulating performance still, not as the clay solid brick of same specification, is difficult to meet building energy conservation requirement.Along with improving constantly that China's building energy conservation requires, in making full use of concrete small block technical advantage, should manage to improve its thermal property, develop heat insulating type concrete one hand tile, do not adopting inside and outside body of wall under heat preservation technology condition, concrete small block masonry thermal property meets China's energy saving building standard-required, thereby improves the market competitiveness of concrete small block, meets the latest requirement of China's materials for wall innovation and building energy conservation.

Foam cement is the heat insulating inorganic material of taking chemical blowing principle to prepare, has light weight, thermal and insulating performance is good, specific strength is high, energy-conserving profit waste, the performance such as do not fire.Compared with the foamed cement that adopts physical blowing principle to prepare, there is early the features such as strong, high-strength, good endurance, cost are low, good stability of the dimension, be more suitable for for the preparation of concrete products.Compared with now widely used organic heat insulating material, there is the feature such as do not fire, durable, cost is low, application is convenient.

The technical measures that improve concrete small block thermal property comprise optimize concrete composition and building block pore structure, in building block hole fill insulant material, employing combining structure compound insulating material etc., or be used in combination several technical measures.Heat insulating type concrete one hand tile kind is more, and wherein fill-type concrete small block is comparatively extensive at China's hot summer and warm winter zone (cold) and the application of part cold district.Mainly there is following shortcoming in existing fill-type concrete small block: (1) adopts the organic insulation materials such as XPS, EPS, polyurathamc as filled heat insulating material, significantly reduce the burning grade of concrete small block, reduce to B1 or B2, even B3 by A level; (2) adopt the material preparations such as foam concrete, mortar with the concrete high-strength of the cavity shell of being outside one's consideration, this shell water absorption rate is high, poor water resistance, and the diseases such as cracking very easily appear in especially poor dimensional stability; (3) foam concrete (cement) that prepared by employing physical blowing principle is as filled heat insulating material, and the problems such as rear dry apparent density is high, heat-insulating property is poor, surface appearance depression are prone to and fill the sedimentation of slurry bleeding, harden; (4) existing filling is higher with heat insulating material cost.Therefore how to optimize block structure, adopt economic and practical inorganic heat insulation material, and to realize industrialization, automated production be heat insulating type concrete one hand tile development urgent problem.

Utility model content

The purpose of this utility model is in order to address the above problem, and a kind of foam cement fill-type concrete composite heat insulation building blocks for wall self-insulation is provided; This building block have thermal property good, do not fire, the feature such as good endurance, quality and performance are stable, economic and practical.Simultaneously can make full use of the solid waste such as building waste, flyash, save cement, the effect of performance energy-saving and emission-reduction, protection of the environment, meet develop a circular economy, low-carbon economy and social sustainable development strategic demand.

The purpose of this utility model is to be achieved through the following technical solutions:

Comprise the concrete substrate 1 with cavity, described concrete substrate 1 is cuboid or square, and described concrete substrate 1 has end face, bottom surface, front end face, rear end face and two sides; The inner side of at least one external surface of described concrete substrate 1 is provided with at least one air space 3 that runs through described concrete substrate, is also provided with the cavity 4 that at least one section area is greater than the section area of described air space 3 in described concrete substrate 1; In described cavity 4, be provided with foam cement obturator 2.

Described cavity 4 is for from connect the communicating structure of described concrete substrate 1 perpendicular to the direction of horizontal plane, or is located at described end face for the notch of groove structure and described groove.

On described front end face, rear end face and/or two sides, be respectively equipped with at least one ash-pit 6.

Described air space 3, perpendicular to horizontal plane direction, is blind hole structure or through-hole structure.

Be provided with at least one fin 5 at the inner surface of described cavity 4.

On described fin 5, be provided with at least one convex shaped or recessed shape mark of break, for strengthening the combination globality of described foam cement obturator 2 and cavity 4.

Be provided with at least one pair of fin 5 at the inner surface of described cavity 4, a fin in described a pair of fin is located at towards described front end face direction, and another fin is located at towards described rear end face direction.

Described at least one pair of fin 5 comprises main fin in described concrete substrate 1 centre position and the auxiliary fin of uniform and main fin both sides.

The utility model adopts after technique scheme, mainly contains following characteristics:

1) the utility model is wall self-insulation concrete composite heat insulation building blocks, has solved the poor problem of concrete small block thermal property, is a kind of novel wall building materials of structure-function integration.

2) the utility model adopts concrete, application vibration extrusion forming technique to prepare the concrete substrate with cavity, as foam cement fill-type concrete composite heat insulation building blocks load-bearing main body, good stability of the dimension, intensity is high, has solved that the made base material water absorption rate such as employing foam concrete, mortar is high, poor water resistance and the disadvantage such as easy to crack.

3) the utility model adopts foam cement as concrete composite heat insulation building blocks fill insulant material, has solved the combustibility problem that organic insulation material brings as fill insulant material, and have durable, cost is low, the feature such as convenient for production.

4) the utility model adopts foam cement as concrete composite heat insulation building blocks fill insulant material, after the bleeding sedimentation being prone to while having solved use foam concrete (cement) as fill insulant material and sclerosis, dry apparent density is high, heat-insulating property is poor, the problems such as depression appear in surface, and has the features such as strong, high-strength, good endurance morning, cost are low.

5) dry apparent density of the utility model concrete substrate structure with cavity, adjustment concrete and foam cement by optimization, can make foam cement fill-type concrete composite heat insulation building blocks masonry thermal transmittance meet national building energy-saving standard requirement.

6) two parts (being matrix and obturator) bond strength of formation the utility model building block is high, using adaptability is good, in the situation that thering is multiple fin, between adjacent fin, can adopt special equipment that building block is cut apart, use as the auxiliary block of master ga(u)ge lattice building block.

7) the utility model can utilize the solid waste such as flyash, bottom slag, building waste, industrial tailings in a large number, meets national development recycling economy, low-carbon economy and the strategy of sustainable development.

8) the utility model product can be widely used in cities and towns frame structure building and villages and small towns Discussion on architecture body of wall.

Accompanying drawing explanation

Fig. 1 is the structural representation of the basic building block of the utility model,

Fig. 2 is the structural representation that the utility model is optimized building block,

Fig. 3 is the stereogram of the concrete substrate of the basic building block of the utility model,

Fig. 4 is the stereogram that the utility model is optimized the concrete substrate of building block,

Fig. 5 is the front view of the basic building block concrete substrate of the utility model,

Fig. 6 is B-B sectional view one in Fig. 5,

Fig. 7 is B-B sectional view two in Fig. 5,

Fig. 8 is C-C sectional view in Fig. 5,

Fig. 9 is A-A sectional view in Fig. 5,

Figure 10 is D-D sectional view in Fig. 9,

Figure 11 is E-E sectional view in Fig. 9,

Figure 12 is the front view that the utility model is optimized building block concrete substrate,

Figure 13 is F-F sectional view in Figure 12,

Figure 14 is that the utility model is optimized building block using method schematic diagram,

Figure 15 is the schematic diagram that the utility model is optimized building block spacing block one,

Figure 16 is the schematic diagram that the utility model is optimized building block spacing block two,

Figure 17 is the schematic diagram that the utility model is optimized building block spacing block three;

In figure:

The 1st, concrete substrate, 11 is 1/4 building blocks, and 12 is 3/4 building blocks, and 13 is 1/2 building blocks,

The 2nd, foam cement obturator,

The 3rd, air space,

The 4th, cavity, the 41st, at the bottom of chamber,

The 5th, fin, the 51st, auxiliary fin, the 52nd, mark of break, the 53rd, fin tie-beam,

The 6th, ash-pit;

Double dot dash line in Figure 14 is the cut-off rule of optimizing building block.

The specific embodiment

The utility model is as shown in Fig. 1-17: comprise the concrete substrate 1 with cavity, concrete substrate 1 is cuboid or square, makes concrete substrate 1 have end face, bottom surface, front end face, rear end face and two sides; The inner side of at least one external surface of concrete substrate 1 is provided with at least one air space 3 that runs through concrete substrate 1, is also provided with the cavity 4 that at least one section area is greater than the section area of air space 3 in concrete substrate 1; In cavity 4, be provided with foam cement obturator 2.

Cavity 4 is the communicating structure that connects concrete substrate 1 from direction perpendicular to horizontal plane, or is located at end face for the notch of groove structure and groove.In Fig. 5, left-half is shown as communicating structure, and right half part is shown as groove structure, and middle part fin 5(main rib) bottom be provided with fin tie-beam 53.Fig. 6-11 further illustrate the difference of above-mentioned two kinds of embodiments and other optimization embodiment.

On front end face, rear end face and/or two sides, be respectively equipped with at least one ash-pit 6.Generally, ash-pit 6 is arranged on two sides, is beneficial to the bond strength between adjacent block; But be not precluded within front and rear end ash-pit 6 is also set, be beneficial to the bond strength of surface of wall grieshoch.

Air space 3, perpendicular to horizontal plane direction, is blind hole structure or through-hole structure.These needs according to client are determined.Air space 3 mainly plays the effect such as loss of weight, insulation, simultaneously constructability and finishing.

Arrange at fin 5, this case provides two kinds of main piece shapes,

The one, the basic building block form as shown in Fig. 1,3,5-11, is provided with at least one fin 5 at the inner surface of cavity 4;

On fin 5, be provided with at least one convex shaped or recessed shape mark of break, the combination globality for enhanced foaming cement obturator 2 with cavity 4.While being communicating structure for the consideration cavity 4 of processing convenience, the mark of break that convex shaped is set on fin 5 surfaces is more convenient.But along with the progress of technology, the mark of break of concave type not can not realize, as Fig. 6 cavity 4 bottoms are also equivalent to a kind of mark of break of recessed shape.Combination globality for enhanced foaming cement obturator 2 with cavity 4.

The 2nd, further optimize building block in basic building block in form, as shown in Fig. 2,4,12,13, be provided with at least one pair of fin 5 at the inner surface of cavity 4, a fin in a pair of fin is located at towards front end face direction, and another fin is located at towards rear end face direction.No matter be the basic building block form as shown in Fig. 1,3,5-11, or the optimization building block form shown in Fig. 2,4,12,13, all should arrange in the main fin 5 of matrix 1 width center.At this, main fin both sides are also provided with to auxiliary fin 51 further, a pair of main fin and two pairs of auxiliary fins 51 are uniform at width (being between two sides).Facilitate like this work in-process and cut apart along main fin and auxiliary fin 51 center, be divided into 1/2,3/4,1/4 piece shape.So that the use of different occasions.

Further illustrate the utility model below in conjunction with experimental example.

Embodiment 1

Be 390mm × 240mm × 190mm with the concrete substrate specification of cavity, profile is cuboid, and side is tack, is provided with the air space that 1 row's width is 20mm inside rear end face in matrix, and inside is provided with the larger cavity of row's area.Air space is made up of 3 apertures, and cavity shape is upper lower through-hole, middle with 1 fin, and convex shaped mark of break is set on fin.Foam cement obturator, by online pad device, is filled in the cavity of concrete substrate.Concrete substrate with cavity and the foam cement of filling by cementing and mechanical snap (with mark of break form embedded structure) be combined into one.

Concrete substrate with cavity is made up of cement concrete, and block density is 730kg/m 3, strength grade reaches MU3.5; Foam cement obturator, with raw materials such as cement, flyash, modifier, blowing agent and water, is made through techniques such as slurrying, filling, chemical blowing, maintenance, surfacings, and dry apparent density is 100kg/m 3, cubic compressive strength is 0.10MPa, coefficient of thermal conductivity is 0.045W/ (m × K).

After tested, foam cement fill-type concrete composite heat insulation building blocks dry apparent density of the present utility model is 780kg/m 3, strength grade reaches MU3.5, and average thermal resistance is 1.070 (m 2× K)/W.

Embodiment 2

Be 390mm × 240mm × 190mm with the concrete substrate specification of cavity, profile is cuboid, and side is tack, is respectively provided with the air space that 1 row's width is 14mm inside front end face and rear end face in matrix, and inside is provided with the larger cavity of row's width.Air space is made up of 2 apertures, and cavity shape is upper lower through-hole, middle with 3 fins.Foam cement obturator is filled in the cavity of concrete substrate by off-line.Described concrete substrate with cavity and the foam cement of filling are combined into one by cementing.

Concrete substrate with cavity is made up of cement concrete, and block density is 700kg/m 3, strength grade reaches MU2.5; Foam cement obturator, with raw materials such as cement, flyash, modifier, blowing agent and water, is made through techniques such as slurrying, filling, chemical blowing, maintenance, surfacings, and dry apparent density is 180kg/m 3, cubic compressive strength is 0.40MPa, coefficient of thermal conductivity is 0.055W/ (m × K).

After tested, foam cement fill-type concrete composite heat insulation building blocks dry apparent density of the present utility model is 780kg/m 3, strength grade reaches MU2.5, and average thermal resistance is 1.077 (m 2× K)/W.

Embodiment 3

Be 390mm × 310mm × 190mm with the concrete substrate specification of cavity, profile is cuboid, two sides and front/rear end are respectively equipped with a pair of ash-pit, are provided with the air space that 1 row's width is 25mm inside front end face in matrix, and matrix is provided with the larger cavity of row's width.Air space is made up of 4 apertures, and cavity shape is groove structure (having bottom land 41), middle with 3 pairs of fins, is provided with recessed shape mark of break on each fin.Foam cement obturator is by being filled in online in the cavity of concrete substrate.The foam cement of described concrete substrate with cavity and filling is combined into one by cementing and mechanical snap.

Concrete substrate with cavity is made up of cement concrete, and block density is 730kg/m 3, strength grade reaches MU5.0; The foam cement of filling, with raw materials such as cement, flyash, modifier, blowing agent and water, is made through techniques such as slurrying, filling, chemical blowing, maintenance, surfacings, and dry apparent density is 100kg/m 3, cubic compressive strength is 0.10MPa, coefficient of thermal conductivity is 0.045W/ (m × K).

After tested, foam cement fill-type concrete composite heat insulation building blocks dry apparent density of the present utility model is 790kg/m 3, strength grade reaches MU5.0, and average thermal resistance is 1.632 (m 2× K)/W.

Embodiment 4

Be 390mm × 310mm × 190mm with the concrete substrate specification of cavity, profile is cuboid, and two sides are respectively equipped with 2 ash-pits, and front/rear end inner side is respectively provided with the air space that 1 row's width is 20mm, and matrix inside is provided with the larger cavity of row's width.Described air space is made up of 3 apertures, cavity shape is upper lower through-hole, is provided with a pair of fin 5 in cavity 4 center positions, is provided with fin tie-beam 53 in the bottom of fin 5, make the intensity of building block matrix in transport process better, avoid fin bottom to occur falling the defect of slag, unfilled corner.Foam cement obturator is filled in the cavity of concrete substrate by off-line.The foam cement of described concrete substrate with cavity and filling is combined into one by cementing and mechanical snap.

Concrete substrate with cavity is made up of cement concrete, and block density is 700kg/m 3, strength grade reaches MU3.5; The foam cement of filling, with raw materials such as cement, flyash, modifier, blowing agent and water, is made through techniques such as slurrying, filling, chemical blowing, maintenance, surfacings, and dry apparent density is 180kg/m 3, cubic compressive strength is 0.40MPa, coefficient of thermal conductivity is 0.055W/ (m × K).

After tested, foam cement fill-type concrete composite heat insulation building blocks dry apparent density of the present utility model is 790kg/m 3, strength grade reaches MU3.5, and average thermal resistance is 1.381 (m 2× K)/W.

Foam cement fill-type concrete composite heat insulation building blocks of the present utility model (auxiliary block) is as shown in Fig. 2,4,12-17, optimize after block forming, can be made into 1/4,1/2,3/4 foam cement fill-type concrete composite heat insulation building blocks by cutting, as the auxiliary block of the fill-type of foam cement shown in Fig. 1 concrete composite heat insulation building blocks (main).

This building block have thermal property good, do not fire, the feature such as good endurance, quality and performance are stable, economic and practical.Simultaneously can make full use of the solid waste such as building waste, flyash, save cement, the effect of performance energy-saving and emission-reduction, protection of the environment, meet develop a circular economy, low-carbon economy and social sustainable development strategic demand.Light weight, thermal insulation and soundproof effect are good, specific strength is high, do not fire, impervious, can be widely used in cities and towns frame structure building and villages and small towns Discussion on architecture body of wall.Easy construction, stable performance, greatly reduce labour intensity and building costs.

Claims (8)

1. a foam cement fill-type concrete composite heat insulation building blocks, comprise the concrete substrate (1) with cavity, described concrete substrate (1) is cuboid or square, and described concrete substrate (1) has end face, bottom surface, front end face, rear end face and two sides; It is characterized in that, the inner side of at least one external surface of described concrete substrate (1) is provided with at least one air space that runs through described concrete substrate (3), is also provided with the cavity (4) that at least one section area is greater than the section area of described air space (3) in described concrete substrate (1); In described cavity (4), be provided with foam cement obturator (2).
2. a kind of foam cement fill-type concrete composite heat insulation building blocks according to claim 1, it is characterized in that, described cavity (4) is for from connect the communicating structure of described concrete substrate (1) perpendicular to the direction of horizontal plane, or is located at described end face for the notch of groove structure and described groove.
3. a kind of foam cement fill-type concrete composite heat insulation building blocks according to claim 1, is characterized in that, on described front end face, rear end face and/or two sides, is respectively equipped with at least one ash-pit (6).
4. a kind of foam cement fill-type concrete composite heat insulation building blocks according to claim 1, is characterized in that, described air space (3), perpendicular to horizontal plane direction, is blind hole structure or through-hole structure.
5. according to a kind of foam cement fill-type concrete composite heat insulation building blocks described in claim 1,2,3 or 4, it is characterized in that, be provided with at least one fin (5) at the inner surface of described cavity (4).
6. a kind of foam cement fill-type concrete composite heat insulation building blocks according to claim 5, it is characterized in that, on described fin (5), be provided with at least one convex shaped or recessed shape mark of break, for strengthening the combination globality of described foam cement obturator (2) and cavity (4).
7. according to a kind of foam cement fill-type concrete composite heat insulation building blocks described in claim 1,2,3 or 4, it is characterized in that, be provided with at least one pair of fin (5) at the inner surface of described cavity (4), a fin in described a pair of fin is located at towards described front end face direction, and another fin is located at towards described rear end face direction.
8. a kind of foam cement fill-type concrete composite heat insulation building blocks according to claim 7, it is characterized in that, described at least one pair of fin (5) comprises main fin in described concrete substrate (1) centre position and the auxiliary fin of uniform and main fin both sides.
CN201320878570.1U 2013-12-27 2013-12-27 Foam cement-filled concrete composite thermal-insulating block CN203654591U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104529285A (en) * 2014-12-16 2015-04-22 贵州师范大学 Method for preparing self-heat-insulation hollow block from construction wastes
CN104563370A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation T-shaped wall corner block
CN104563380A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation L-shaped wall corner block
CN104563371A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for extruded polystyrene (XPS)-foaming cement composite self-thermal-insulation T-shaped wall corner building block
CN107175749A (en) * 2017-05-31 2017-09-19 山东省建设发展研究院 A kind of steam-pressing aero-concrete composite thermal self-insulation building block and preparation method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104529285A (en) * 2014-12-16 2015-04-22 贵州师范大学 Method for preparing self-heat-insulation hollow block from construction wastes
CN104563370A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation T-shaped wall corner block
CN104563380A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for EPS (expandable polystyrene)-foam cement composite self-insulation L-shaped wall corner block
CN104563371A (en) * 2014-12-26 2015-04-29 济南大学 Preparation method for extruded polystyrene (XPS)-foaming cement composite self-thermal-insulation T-shaped wall corner building block
CN104563380B (en) * 2014-12-26 2016-08-17 济南大学 A kind of preparation method of EPS-foam cement composite self-insulation L-shaped wall corner building block
CN104563371B (en) * 2014-12-26 2016-09-21 济南大学 A kind of preparation method of XPS-foam cement composite self-insulation T-shaped wall corner building block
CN107175749A (en) * 2017-05-31 2017-09-19 山东省建设发展研究院 A kind of steam-pressing aero-concrete composite thermal self-insulation building block and preparation method thereof

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