CN105731888A - High-strength waste rock powder aerated concrete block - Google Patents
High-strength waste rock powder aerated concrete block Download PDFInfo
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- CN105731888A CN105731888A CN201410749521.7A CN201410749521A CN105731888A CN 105731888 A CN105731888 A CN 105731888A CN 201410749521 A CN201410749521 A CN 201410749521A CN 105731888 A CN105731888 A CN 105731888A
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- aerated concrete
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Abstract
The invention provides a hit-strength waste rock powder aerated concrete block. The concrete block comprises the components of, by mass, 50-65% of waste rock powder, 15-30% of cement, 3-5% of gypsum, 15-25% of lime, 0.2-1% of brucite fiber, and 0.09% of aluminum powder. According to the invention, brucite fiber is used for carrying out enhancement modification upon aerated concrete, such that enhancing and toughening effects can be provided for the aerated concrete. Therefore, the strength of the aerated concrete is improved. A large amount of waste rock powder is added in the aerated concrete, such that cost can be reduced, and a novel approach is provided for high-added-value reutilization of the waste rock powder. The aerated concrete block provided by the invention has the characteristics of light weight, high strength and good thermal insulation performance.
Description
Technical field
The invention belongs to environmental-friendly construction material field, relate to a kind of high-strength waste stone dust air-entrained concrete building block, be specifically related to a kind of high intensity air-entrained concrete building block that with the addition of waste stone dust and brucite fiber.
Background technology
Air-entrained concrete building block has the features such as light weight, high-strength, insulation, heat insulation, sound absorption, fire prevention, be widely used in frame structure, the exterior wall of cast-in-place concrete structure building is filled, interior wall partition, can also be used for the exterior wall of antidetonation ring beam structure tier building or thermal insulation composite wall body, be also used for the insulation of building roofing and heat insulation.General, the primary raw material of air-entrained concrete building block includes cement, Calx, sand, flyash, slag, foaming agent, bubble stabilizer and regulator etc., technical process includes levigate, batching, stirring, cast, get angry expansion, quiet stop, cutting, steam press maintenance, finished product processing and packaging etc., air entrained concrete prepared by above-mentioned raw materials and technique is adopted to be widely used, but air-entrained concrete building block there is also some problems at present in some aspects, it is mainly manifested in: (1) block strength is on the low side, endurance quality is not good, cannot apply on bearing wall and exterior wall；(2) resisted shrinkage and cracking resistance are generally on the low side, cause that body of wall is not sufficiently stable.Wherein, the disadvantage that air-entrained concrete building block exists is low strength, and the intensity how improving air entrained concrete is to promote the key issue of its application.
Adopt fiber that air entrained concrete is carried out enhancing modified and can be effectively improved its comprcssive strength, brucite fiber is a kind of occurrence status of shepardite, it has higher draw ratio, can use as fibrous material, having many excellent characteristics, the fibrous structure of its uniqueness makes it can use in air entrained concrete as reinforcing material.
In consideration of it, the present invention adopts brucite fiber that air-entrained concrete building block is strengthened, and add processing of stone garbage waste stone dust in a large number to reduce cost, prepare High Strength Aerated Concrete building block.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of high-strength waste stone dust air-entrained concrete building block, this air-entrained concrete building block has the feature of light weight, high-strength, good heat insulating, and cost is low, is a kind of energy saving building material.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of high-strength waste stone dust air-entrained concrete building block, it is characterised in that each component includes as follows according to mass percent:
Waste stone dust 50～65%,
Cement 15～30%,
Gypsum Fibrosum 3～5%,
Calx 15～25%,
Brucite fiber 0.2～1%,
Aluminium powder 0.09%.
Preferably, each component includes as follows according to mass percent:
Waste stone dust 55～60%,
Cement 15～25%,
Gypsum Fibrosum 3.5～4.5%,
Calx 18～23%,
Brucite fiber 0.4～0.6%,
Aluminium powder 0.09%.
Preferably, described waste stone dust is the one of waste marble powder, useless granite powder, spent lime stone powder.
Beneficial effects of the present invention has:
(1) adopt brucite fiber that air entrained concrete is carried out enhancing modified, shepardite fiber fines is uniform, be disorderly distributed in air entrained concrete matrix to ground, bear the stress occurred because of the generation of concrete microcrack, prevent the generation of this microcrack, or even further develop, simultaneously, it is filled with again the hole in concrete, reach the purpose of air-free concrete matrix, air entrained concrete matrix is strengthened with brucite fiber, air entrained concrete can playing enhancing, toughening effect, improve the intensity of air entrained concrete, effect is obvious；
(2) recycling of the waste stone dust produced in Marble processing process is a difficult problem, waste stone dust is applied in air-entrained concrete building block by the present invention, the mechanical property of air entrained concrete can be improved on the one hand, waste stone dust can be consumed in a large number on the other hand, kill two birds with one stone, the present invention has widened the application of waste stone dust, improves its added value, and the recycling for waste stone dust provides a new way；
(3) air-entrained concrete building block of the present invention has the feature of light weight, high-strength, good heat insulating.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further illustrated.Should be appreciated that embodiment described herein is only for explaining the present invention, is not intended to limit the present invention.
Embodiment 1
A kind of high-strength waste stone dust air-entrained concrete building block, it is characterised in that each component includes as follows according to mass percent:
Waste marble powder 55%,
Cement 23%,
Gypsum Fibrosum 3.5%,
Calx 18%,
Brucite fiber 0.4%,
Aluminium powder 0.09%.
Weigh the various raw materials of the present embodiment, adopt the preparation technology of tradition air entrained concrete, agitating device puts into various raw materials by proportioning, add appropriate water while stirring, make mortar shape, then passing sequentially through the aerated concrete brick laying that the techniques such as cast, precuring, cutting, steam pressure, maintenance are made, the comprcssive strength of this air-entrained concrete building block is 7.2MPa.
Embodiment 2
A kind of high-strength waste stone dust air-entrained concrete building block, it is characterised in that each component includes as follows according to mass percent:
Waste marble powder 60%,
Cement 15%,
Gypsum Fibrosum 4.3%,
Calx 20%,
Brucite fiber 0.6%,
Aluminium powder 0.09%.
The preparation method of air-entrained concrete building block is with embodiment 1, and the comprcssive strength of this air-entrained concrete building block is 6.4MPa.
Embodiment 3
A kind of high-strength waste stone dust air-entrained concrete building block, it is characterised in that each component includes as follows according to mass percent:
Spent lime stone powder 56%,
Cement 20%,
Gypsum Fibrosum 4.3%,
Calx 19%,
Brucite fiber 0.6%,
Aluminium powder 0.09%.
The preparation method of air-entrained concrete building block is with embodiment 1, and the comprcssive strength of this air-entrained concrete building block is 7.6MPa.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equal replacement and improvement etc. made within the spirit and principles in the present invention, all should drop within protection scope of the present invention.
Claims (3)
1. a high-strength waste stone dust air-entrained concrete building block, it is characterised in that each component includes as follows according to mass percent:
Waste stone dust 50～65%,
Cement 15～30%,
Gypsum Fibrosum 3～5%,
Calx 15～25%,
Brucite fiber 0.2～1%,
Aluminium powder 0.09%.
2. high-strength waste stone dust air-entrained concrete building block according to claim 1, it is characterised in that each component includes as follows according to mass percent:
Waste stone dust 55～60%,
Cement 15～25%,
Gypsum Fibrosum 3.5～4.5%,
Calx 18～23%,
Brucite fiber 0.4～0.6%,
Aluminium powder 0.09%.
3. high-strength waste stone dust air-entrained concrete building block according to claim 1, it is characterised in that described waste stone dust is the one of waste marble powder, useless granite powder, spent lime stone powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749521.7A CN105731888A (en) | 2014-12-10 | 2014-12-10 | High-strength waste rock powder aerated concrete block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749521.7A CN105731888A (en) | 2014-12-10 | 2014-12-10 | High-strength waste rock powder aerated concrete block |
Publications (1)
| Publication Number | Publication Date |
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| CN105731888A true CN105731888A (en) | 2016-07-06 |
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| CN201410749521.7A Pending CN105731888A (en) | 2014-12-10 | 2014-12-10 | High-strength waste rock powder aerated concrete block |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500641A (en) * | 2017-10-12 | 2017-12-22 | 贺州学院 | A kind of concrete brick and preparation method thereof |
| CN107555879A (en) * | 2017-10-12 | 2018-01-09 | 贺州学院 | A kind of concrete and its formula, manufacture craft |
| CN109761558A (en) * | 2019-01-30 | 2019-05-17 | 滁州职业技术学院 | A kind of thermal insulation concrete and preparation method thereof |
| CN110041007A (en) * | 2019-03-11 | 2019-07-23 | 武汉理工大学 | A kind of impervious marble powder composite blend and its application |
| CN110386770A (en) * | 2019-08-12 | 2019-10-29 | 王雪梅 | A kind of processing method of waste material of stone |
| CN110981403A (en) * | 2019-11-29 | 2020-04-10 | 南京绿色增材智造研究院有限公司 | High-strength concrete plate and preparation method thereof |
| CN112390603A (en) * | 2020-10-12 | 2021-02-23 | 山东京博环保材料有限公司 | Method for preparing autoclaved aerated concrete by recycling solid waste stone powder |
| CN116081972A (en) * | 2023-02-24 | 2023-05-09 | 桂林理工大学 | Preparation method of superfine micro-nano scale active admixture and linked grouting material |
-
2014
- 2014-12-10 CN CN201410749521.7A patent/CN105731888A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107500641A (en) * | 2017-10-12 | 2017-12-22 | 贺州学院 | A kind of concrete brick and preparation method thereof |
| CN107555879A (en) * | 2017-10-12 | 2018-01-09 | 贺州学院 | A kind of concrete and its formula, manufacture craft |
| CN109761558A (en) * | 2019-01-30 | 2019-05-17 | 滁州职业技术学院 | A kind of thermal insulation concrete and preparation method thereof |
| CN110041007A (en) * | 2019-03-11 | 2019-07-23 | 武汉理工大学 | A kind of impervious marble powder composite blend and its application |
| CN110386770A (en) * | 2019-08-12 | 2019-10-29 | 王雪梅 | A kind of processing method of waste material of stone |
| CN110981403A (en) * | 2019-11-29 | 2020-04-10 | 南京绿色增材智造研究院有限公司 | High-strength concrete plate and preparation method thereof |
| CN110981403B (en) * | 2019-11-29 | 2022-03-25 | 南京绿色增材智造研究院有限公司 | High-strength concrete plate and preparation method thereof |
| CN112390603A (en) * | 2020-10-12 | 2021-02-23 | 山东京博环保材料有限公司 | Method for preparing autoclaved aerated concrete by recycling solid waste stone powder |
| CN116081972A (en) * | 2023-02-24 | 2023-05-09 | 桂林理工大学 | Preparation method of superfine micro-nano scale active admixture and linked grouting material |
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Application publication date: 20160706 |
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| WD01 | Invention patent application deemed withdrawn after publication |