CN104961417A - Regenerated light aggregate heat preservation concrete and manufacturing method thereof - Google Patents
Regenerated light aggregate heat preservation concrete and manufacturing method thereof Download PDFInfo
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- CN104961417A CN104961417A CN201510378578.5A CN201510378578A CN104961417A CN 104961417 A CN104961417 A CN 104961417A CN 201510378578 A CN201510378578 A CN 201510378578A CN 104961417 A CN104961417 A CN 104961417A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses regenerated light aggregate heat preservation concrete which consists of a component A and a component B, wherein the component A consists of the following materials in percentage by weight: 25-34 percent of cement, 10-15 percent of an admixture, 23-48 percent of regenerated light aggregates, 0-25 percent of commercially available light aggregates and 2-3 percent of an additive; the component B is water; the weight of the component B is 24-26 percent of the total weight of the component A. According to the regenerated light aggregate heat preservation concrete, industrial wastes are fully used, and the properties of all the aspects of the heat preservation concrete are improved.
Description
Technical field
The invention belongs to building material technical field, be specifically related to a kind of thermal insulation concrete utilizing regeneration light-weight aggregate to prepare.
Background technology
Along with the raising that people require residence comfort, building energy consumption sharply increases, and energy-conserving and environment-protective have become the important component part of energy-saving design in construction, and the material of construction that research and development meet green heat preservation energy-saving is very important problem.The regulations such as covil construction exterior wall heat-preserving system and decoration of exterior wall fire safety rules, are limited traditional organic insulation material, recommend to adopt non-fire material or nonflammable material as thermal insulation layer.Inorganic heat preservation concrete has the features such as safe, green, durable, high-performance, meets the building energy conservation requirement of China.Many scholars have carried out mechanical property and heat-insulating property experimental study to thermal insulation concrete both at home and abroad.
Summary of the invention
The present invention seeks to: a kind of regeneration light-weight aggregate thermal insulation concrete utilizing trade waste to prepare is provided, also discloses this concrete preparation method simultaneously, while making full use of trade waste, improve concrete various aspects of performance.
Technical scheme of the present invention is: a kind of regeneration light-weight aggregate thermal insulation concrete, and be made up of component A and B component, described component A is made up of the material of following corresponding weight percent:
Described B component is water, and the weight of this B component is 24 ~ 26% of described component A gross weight.
This regeneration light-weight aggregate thermal insulation of the present invention concrete, on the basis of technique scheme, also comprises following preferred version:
Described adulterant is the mixture of coal dust ash and slag powders.
Described regeneration light-weight aggregate be selected from foam cement waste material and cinder one or both.
Described foam cement waste material is formed through pulverizing by the waste product produced in foam cement product production process, and described cinder is the waste residue that factory's fire coal produces.
Described commercially available light-weight aggregate be selected from haydite and glass bead one or both.
Described admixture is how based water reducer or poly carboxylic acid series water reducer.
The concrete preparation method of above-mentioned regeneration light-weight aggregate thermal insulation, comprises the following steps:
1) stir in cement, adulterant, admixture and water input stirrer by corresponding weight ratio;
2) by corresponding weight ratio, regeneration light-weight aggregate and commercially available light-weight aggregate are also dropped in described stirrer, stir, obtain described regeneration light-weight aggregate thermal insulation concrete.
Advantage of the present invention is:
1, cement insulation board waste product (as scrap stock etc.) is turned waste into wealth by the present invention, as regeneration light-weight aggregate thermal insulation material, then adds the thermal insulation light aggregate such as glass bead, haydite, and system joins regeneration light-weight aggregate thermal insulation concrete.After tested, the concrete ultimate compression strength of this regeneration of the present invention light-weight aggregate thermal insulation reaches 7.8 ~ 20.8MPa, dry density is about 956 ~ 1235kg/m3, thermal conductivity is about 0.1118w/ (m.k) ~ 0.1411w/ (m.k), water-intake rate is 4.75 ~ 10.23%, coefficient of softening is greater than 0.81, illustrates to have good mechanical property, heat-insulating property and fire resistance.
2, the present invention can consume trade waste in a large number, realizes the efficiency utilization to waste, reduces the exploitation of natural light-weight aggregate, utilize waste and save energy, cheap, reaches the object of the useless environmental protection of profit.
Embodiment:
Be described further below with reference to the technique effect of embodiment to design of the present invention, implementation method and generation, to understand object of the present invention, characteristic sum effect fully.
In following 7 embodiments, raw materials and performance as follows:
Cement: P.O32.5 ordinary Portland cement;
Flyash: II grade and following low-quality flyash;
Slag powders: S95 slag powders;
Foam cement waste material: broken factory foam cement waste material (waste product produced in foam cement product production process forms through pulverizing), particle diameter is 0 ~ 4.75mm, the tap density 625kg/m under drying regime
3, apparent density 1289kg/m
3, actual measurement water ratio 15.6%;
Cinder: the waste residue that broken factory fire coal produces, particle diameter is 0 ~ 4.75mm, and the tap density under drying regime is 830kg/m
3, apparent density 1645kg/m
3, actual measurement water ratio is 17.3%;
Haydite: commercially available, particle diameter 5 ~ 12mm, tap density 340kg/m
3, cylindrical compress strength 0.9MPa;
Glass bead: commercially available, particle diameter 0.1 ~ 2mm, tap density 90kg/m
3;
Admixture: high efficiency water reducing agent, be preferably how based water reducer or poly carboxylic acid series water reducer, water reducing ability is 18% ~ 22%.
Embodiment 1:
In this example, the concrete various component of this regeneration light-weight aggregate thermal insulation and mass ratio thereof are, cement: flyash: slag powders: admixture: foam cement waste material: water=34:5:10:3:48:24.
Preparation method is as follows:
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) also drop into regenerating light-weight aggregate (the foam cement waste material namely in said components) equably in described stirrer according to the above ratio again, with described step 1) in the material mixed together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 2:
In this example, the concrete various component of this regeneration light-weight aggregate thermal insulation and mass ratio thereof are:
Cement: flyash: slag powders: admixture: foam cement waste material: cinder: water=34:5:10:3:36:12:24.
Preparation method is as follows:
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) also drop into regenerating light-weight aggregate (the foam cement waste material namely in said components and cinder) equably in described stirrer according to the above ratio again, with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 3:
In this example, the concrete various component of this regeneration light-weight aggregate thermal insulation and mass ratio thereof are, cement: flyash: slag powders: admixture: foam cement waste material: glass bead: water=34:5:10:2.5:38:10.5:26.
Preparation method is as follows:
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) according to the above ratio the composite light aggregate be made up of regeneration light-weight aggregate (the foam cement waste material namely in said components) and commercially available light-weight aggregate (glass bead namely in said components) is also dropped in described stirrer equably again; with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 4:
In this example, the concrete component of this regeneration light-weight aggregate thermal insulation and mass percent thereof are:
Cement: flyash: slag powders: admixture: foam cement waste material: glass bead: cinder: water=34:5:7:3:31.5:10:9.5:26.
Preparation method is as follows:
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) according to the above ratio the composite light aggregate be made up of regeneration light-weight aggregate (the foam cement waste material namely in said components and cinder) and commercially available light-weight aggregate (glass bead namely in said components) is also dropped in described stirrer equably again; with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 5:
In this example, the concrete component of this regeneration light-weight aggregate thermal insulation and mass percent thereof are:
Cement: flyash: slag powders: admixture: foam cement waste material: glass bead: cinder: haydite: water=34:5:10:3:17.3:10:5.7:15:26.
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) according to the above ratio the composite light aggregate be made up of regeneration light-weight aggregate (the foam cement waste material namely in said components and cinder) and commercially available light-weight aggregate (glass bead namely in said components and haydite) is also dropped in described stirrer equably again; with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 6:
In this example, the concrete component of this regeneration light-weight aggregate thermal insulation and mass percent thereof are:
Cement: flyash: slag powders: admixture: foam cement waste material: glass bead: haydite: water=25:3.7:6.3:2:41:13:9:25.
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) according to the above ratio the composite light aggregate be made up of regeneration light-weight aggregate (the foam cement waste material namely in said components) and commercially available light-weight aggregate (glass bead namely in said components and haydite) is also dropped in described stirrer equably again; with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Embodiment 7:
In this example, the concrete component of this regeneration light-weight aggregate thermal insulation and mass percent thereof are:
Cement: flyash: slag powders: admixture: cinder: haydite: water=25:3.7:6.3:2:48:15:26.
1) stir in cement, adulterant (flyash namely in said components and slag powders), admixture and water input stirrer according to the above ratio;
2) according to the above ratio the composite light aggregate be made up of regeneration light-weight aggregate (cinder namely in said components) and commercially available light-weight aggregate (haydite namely in said components) is also dropped in described stirrer equably again, with described step 1) in material together with stir, namely obtain regeneration light-weight aggregate thermal insulation concrete of the present invention.
Based on the method for above-described embodiment 1 ~ 7,7 groups of regeneration light-weight aggregate thermal insulation concrete are prepared altogether.After tested, the performance perameter of embodiment 1 ~ 7 prepare 7 groups regeneration light-weight aggregate thermal insulation concrete in ultimate compression strength, dry density, thermal conductivity, water-intake rate, coefficient of softening is as shown in table 1.
Table 1 regenerates light aggregate concrete performance
Be not difficult to find out from table 1, this regeneration light-weight aggregate thermal insulation concrete obtained by the present invention, its ultimate compression strength reaches 7.8 ~ 20.8MPa, dry density is about 956 ~ 1235kg/m3, thermal conductivity is about 0.1118w/ (m.k) ~ 0.1411w/ (m.k), water-intake rate is 4.75 ~ 10.23%, and coefficient of softening is greater than 0.81, illustrates that it has good mechanical property, heat-insulating property and fire resistance.Compared with existing thermal insulation concrete, concrete advantages of the present invention.This mainly because foam cement waste material and cinder are lightweight, porous material, has good heat-insulating property, may be used for making thermal insulation concrete.In the present invention, the volume of foam cement waste material and cinder is up to 48%, and waste utilization rate is high.Along with the increase of foam cement waste material and cinder volume, thermal insulation concrete hole increases, and density declines, and thermal conductivity reduces, and heat-insulating property increases.
The present invention can consume trade waste in a large number, realizes the efficiency utilization to waste, reduces the exploitation of natural light-weight aggregate, utilize waste and save energy, cheap, reaches the object of the useless environmental protection of profit.
In above-mentioned 7 embodiments, described adulterant is the conventional batching of concrete, it also can be the material such as limestone powder or silicon ash, why the present invention adopts the mixture of flyash and slag powders as adulterant, because flyash and slag powders are the concrete admixtures of high-quality, its aboundresources, cheap, be the building materials raw material of bringing good to and remove all evil generally adopted at present.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (7)
1. regenerate a light-weight aggregate thermal insulation concrete, be made up of component A and B component, it is characterized in that described component A is made up of the material of following corresponding weight percent:
Described B component is water, and the weight of this B component is 24 ~ 26% of described component A gross weight.
2. regeneration light-weight aggregate thermal insulation concrete according to claim 1, is characterized in that: described adulterant is the mixture of coal dust ash and slag powders.
3. regeneration light-weight aggregate thermal insulation concrete according to claim 1, is characterized in that: described regeneration light-weight aggregate be selected from foam cement waste material and cinder one or both.
4. regeneration light-weight aggregate thermal insulation concrete according to claim 3, is characterized in that: described foam cement waste material is formed through pulverizing by the waste product produced in foam cement product production process, and described cinder is the waste residue that factory's fire coal produces.
5. regeneration light-weight aggregate thermal insulation concrete according to claim 1, is characterized in that: described commercially available light-weight aggregate be selected from haydite and glass bead one or both.
6. regeneration light-weight aggregate thermal insulation concrete according to claim 1, is characterized in that: described admixture is based water reducer or poly carboxylic acid series water reducer for how.
7. the concrete preparation method of regeneration light-weight aggregate thermal insulation as described in claim arbitrary in claim 1 ~ 6, is characterized in that the method comprises the following steps:
1) stir in cement, adulterant, admixture and water input stirrer by corresponding weight ratio;
2) by corresponding weight ratio, regeneration light-weight aggregate and commercially available light-weight aggregate are also dropped in described stirrer, stir, obtain described regeneration light-weight aggregate thermal insulation concrete.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819767A (en) * | 2016-03-28 | 2016-08-03 | 鲁涛 | Lightweight aggregate concrete |
| CN107382172A (en) * | 2017-08-23 | 2017-11-24 | 上海君道住宅工业有限公司 | A kind of integrated self-insulating architectural concrete |
| CN108892451A (en) * | 2018-08-02 | 2018-11-27 | 广东金意陶陶瓷集团有限公司 | Lightweight concrete, lightweight precast concrete part and preparation method thereof and construction material |
| CN113402213A (en) * | 2021-07-23 | 2021-09-17 | 成都志达商品混凝土厂 | Recycled concrete and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819767A (en) * | 2016-03-28 | 2016-08-03 | 鲁涛 | Lightweight aggregate concrete |
| CN107382172A (en) * | 2017-08-23 | 2017-11-24 | 上海君道住宅工业有限公司 | A kind of integrated self-insulating architectural concrete |
| CN108892451A (en) * | 2018-08-02 | 2018-11-27 | 广东金意陶陶瓷集团有限公司 | Lightweight concrete, lightweight precast concrete part and preparation method thereof and construction material |
| CN108892451B (en) * | 2018-08-02 | 2021-08-31 | 广东金意陶陶瓷集团有限公司 | Lightweight concrete, lightweight concrete prefabricated part, preparation method of lightweight concrete prefabricated part and building material |
| CN113402213A (en) * | 2021-07-23 | 2021-09-17 | 成都志达商品混凝土厂 | Recycled concrete and preparation method thereof |
| CN113402213B (en) * | 2021-07-23 | 2022-10-11 | 成都志达商品混凝土厂 | Recycled concrete and preparation method thereof |
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Application publication date: 20151007 |