CN101250046A - Foundation material and method for preparing same - Google Patents
Foundation material and method for preparing same Download PDFInfo
- Publication number
- CN101250046A CN101250046A CNA2008100353328A CN200810035332A CN101250046A CN 101250046 A CN101250046 A CN 101250046A CN A2008100353328 A CNA2008100353328 A CN A2008100353328A CN 200810035332 A CN200810035332 A CN 200810035332A CN 101250046 A CN101250046 A CN 101250046A
- Authority
- CN
- China
- Prior art keywords
- waste
- useless brick
- roadbed material
- road
- waste residue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/10—Lime cements or magnesium oxide cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a road subbottom material and a relative preparation method, wherein the road subbottom material uses 10-50% of waste concretes, 10-50% of crushed bricks, 10-66% of waste sand ash and 2-17% of adhesive as main components, while the total amount is 100%. The inventive road subbottom has high compressive strength, better hydraulicity, high resilient modulus, strong distorsion resistance ablity and wide application for the road construction of soft soil foundation at riverside and coastal area. The invention can resolve the treatment problems of waste concrete, waste brick, waste sand ash and waste residue, to reduce the consumption and development of natural sand gravel and provide a regenerated road subbottom material resource, which can be utilized on site and constructed on site, meet energy-saving and emission reduction demands, with better economic and social benefits.
Description
Technical field
The present invention relates to a kind of roadbed material and preparation method thereof, belong to technical field of road engineering materials.
Background technology
Along with the development of urban construction, building wastes such as a large amount of waste concretes, useless brick, antiquated sand ash, waste residue soil have been produced.The method of handling at present these building wastes is to fill out hole or air storage, not only occupies cultivated land, contaminate environment, and has caused the ample resources waste.In addition, the existing road laying technology is with the framework material of natural rubble as roadbed, needs a large amount of natural sandstones of exploitation, has produced the deficient day by day problem of natural sandstone, does not meet the requirement of Sustainable development.
Summary of the invention
The object of the present invention is to provide a kind of roadbed material and preparation method thereof, so that waste concrete, useless brick, antiquated sand ash and waste residue soil are fully recycled and reduced consumption and the exploitation of construction industry to natural sandstone.
For achieving the above object, the present invention is achieved by the following technical solutions:
Roadbed material provided by the invention, for mainly to form, each weight percent of forming is as follows by waste concrete, useless brick, antiquated sand ash, waste residue soil and binding agent:
Waste concrete 10～50%
Useless brick 10～50%
Antiquated sand ash 10～66%
Waste residue soil 10～66%
Binding agent 2～17%
Below respectively forming sum is 100%.
Described binding agent is cement or lime.
The preparation method of roadbed material of the present invention comprises following concrete steps:
1) sorting waste concrete and useless brick from building waste residue;
2) broken waste concrete of difference and useless brick, impurity is wherein removed in the screening pre-treatment;
3) broken respectively once more pretreated waste concrete of process and useless brick are to the block of granularity less than 150mm;
4) vegetable mould in the rejecting waste residue soil and the impurity in mud and the antiquated sand ash;
5) on-the-spot by proportioning weighing waste concrete, useless brick, antiquated sand ash, waste residue soil and binding agent;
6) add entry in above-mentioned mixture, it is mixed, wherein: the add-on of water is 4～15% of a mixture gross weight;
7) the above-mentioned material that mixes is paved on the roadbed of building, laying depth is 10～70mm;
8) roll compacting by job specifications with rolling machine, promptly get roadbed material.
Roadbed material ultimate compression strength height of the present invention, the hydraulicity is good, the modulus of resilience is high, non-deformability is strong, can be widely used in the road construction of geographic soft clay ground such as riverine, coastal.The present invention has not only solved the handling problem of a large amount of waste concretes, useless brick, antiquated sand ash and waste residue soil, and reduced consumption and the exploitation of construction industry to natural sandstone, alleviated the deficient day by day problem of natural sandstone, and a kind of roadbed material resource of recyclable regenerative utilization is provided for construction industry; In addition, the present invention can utilize on the spot, the reuse site operation, meets the energy-saving and emission-reduction requirement, has good economic benefit and social benefit.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed, complete explanation:
Embodiment 1
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 25%
Useless brick 20%
Antiquated sand ash 22%
Waste residue soil 28%
Cement 5%
The preparation method of the roadbed material of present embodiment is as described below:
1) sorting waste concrete and useless brick from building waste residue;
2) broken waste concrete of difference and useless brick, impurity is wherein removed in the screening pre-treatment;
3) broken respectively once more pretreated waste concrete of process and useless brick are to the block of granularity less than 150mm;
4) vegetable mould in the rejecting waste residue soil and the impurity in mud and the antiquated sand ash;
5) on-the-spot by proportioning weighing waste concrete, useless brick, antiquated sand ash, waste residue soil and binding agent;
6) add entry in above-mentioned mixture, it is mixed, wherein: the add-on of water is 10% of a mixture gross weight;
7) the above-mentioned material that mixes is paved on the roadbed of building, laying depth is 10～70mm;
8) roll compacting by job specifications with rolling machine, promptly get roadbed material.
The performance test data of the roadbed material of present embodiment is shown in Table 1:
The performance test data of table 1 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 2.0 |
| The indoor modulus of resilience of 7d (MPa) | 150 |
| Maximum dry density g/cm 3 | 1.99 |
| Optimum moisture content % | 13.1 |
As seen, the roadbed material ultimate compression strength height of present embodiment, the hydraulicity is good, the modulus of resilience is high, non-deformability is strong, can be widely used in the road construction of geographic soft clay ground such as riverine, coastal.
Embodiment 2
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 20%
Useless brick 25%
Antiquated sand ash 28%
Waste residue soil 22%
Lime 5%
The preparation method of the roadbed material of present embodiment is described with embodiment 1, and difference is: the add-on of water is 11% of a mixture gross weight.
The performance test data of the roadbed material of present embodiment is shown in Table 2:
The performance test data of table 2 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 0.9 |
| The indoor modulus of resilience of 7d (MPa) | 145 |
| Maximum dry density g/cm 3 | 1.99 |
| Optimum moisture content % | 12.8 |
Embodiment 3
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 50%
Useless brick 10%
Antiquated sand ash 10%
Waste residue soil 27%
Cement 3%
The preparation method of the roadbed material of present embodiment is described with embodiment 1, and difference is: the add-on of water is 8% of a mixture gross weight.
The performance test data of the roadbed material of present embodiment is shown in Table 3:
The performance test data of table 3 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 1.3 |
| The indoor modulus of resilience of 7d (MPa) | 151 |
| Maximum dry density g/cm 3 | 2.02 |
| Optimum moisture content % | 12.0 |
Embodiment 4
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 10%
Useless brick 50%
Antiquated sand ash 14%
Waste residue soil 10%
Cement 16%
The preparation method of the roadbed material of present embodiment is described with embodiment 1, and difference is: the add-on of water is 15% of a mixture gross weight.
The performance test data of the roadbed material of present embodiment is shown in Table 4:
The performance test data of table 4 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 1.0 |
| The indoor modulus of resilience of 7d (MPa) | 133 |
| Maximum dry density g/cm 3 | 1.94 |
| Optimum moisture content % | 11.0 |
Embodiment 5
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 10%
Useless brick 10%
Antiquated sand ash 66%
Waste residue soil 10%
Lime 4%
The preparation method of the roadbed material of present embodiment is described with embodiment 1, and difference is: the add-on of water is 12% of a mixture gross weight.
The performance test data of the roadbed material of present embodiment is shown in Table 5:
The performance test data of table 5 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 1.6 |
| The indoor modulus of resilience of 7d (MPa) | 140 |
| Maximum dry density g/cm 3 | 1.98 |
| Optimum moisture content % | 13.0 |
Embodiment 6
The weight percent of the main composition of the roadbed material that present embodiment provides is as follows:
Waste concrete 10%
Useless brick 10%
Antiquated sand ash 10%
Waste residue soil 66%
Cement 4%
The preparation method of the roadbed material of present embodiment is described with embodiment 1, and difference is: the add-on of water is 4% of a mixture gross weight.
The performance test data of the roadbed material of present embodiment is shown in Table 6:
The performance test data of table 6 roadbed material
| Test event | Test data |
| 7d unconfined compression strength (MPa) | 0.8 |
| The indoor modulus of resilience of 7d (MPa) | 80 |
| Maximum dry density g/cm 3 | 1.80 |
| Optimum moisture content % | 8.9 |
Claims (3)
1. a roadbed material is characterized in that, for mainly to form, each weight percent of forming is as follows by waste concrete, useless brick, antiquated sand ash, waste residue soil and binding agent:
Waste concrete 10～50%
Useless brick 10～50%
Antiquated sand ash 10～66%
Waste residue soil 10～66%
Binding agent 2～17%
Below respectively forming sum is 100%.
2. roadbed material according to claim 1 is characterized in that, described binding agent is cement or lime.
3. the preparation method of the described roadbed material of claim 1 is characterized in that, described method comprises following concrete steps:
1) sorting waste concrete and useless brick from building waste residue;
2) broken waste concrete of difference and useless brick, impurity is wherein removed in the screening pre-treatment;
3) broken respectively once more pretreated waste concrete of process and useless brick are to the block of granularity less than 150mm;
4) vegetable mould in the rejecting waste residue soil and the impurity in mud and the antiquated sand ash;
5) on-the-spot by proportioning weighing waste concrete, useless brick, antiquated sand ash, waste residue soil and binding agent;
6) add entry in above-mentioned mixture, it is mixed, wherein: the add-on of water is 4～15% of a mixture gross weight;
7) the above-mentioned material that mixes is paved on the roadbed of building, laying depth is 10～70mm;
8) roll compacting by job specifications with rolling machine, promptly get roadbed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100353328A CN101250046A (en) | 2008-03-28 | 2008-03-28 | Foundation material and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100353328A CN101250046A (en) | 2008-03-28 | 2008-03-28 | Foundation material and method for preparing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101250046A true CN101250046A (en) | 2008-08-27 |
Family
ID=39953666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100353328A Pending CN101250046A (en) | 2008-03-28 | 2008-03-28 | Foundation material and method for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101250046A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900001A (en) * | 2012-10-22 | 2013-01-30 | 中国水电建设集团路桥工程有限公司 | Construction method for road foundation |
| CN107032706A (en) * | 2017-05-24 | 2017-08-11 | 西安汉河环保科技有限公司 | A kind of sub-surface forming method for using drift-sand for raw material |
| CN113800838A (en) * | 2021-11-05 | 2021-12-17 | 中南大学 | Road base material for highway and preparation method thereof |
-
2008
- 2008-03-28 CN CNA2008100353328A patent/CN101250046A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900001A (en) * | 2012-10-22 | 2013-01-30 | 中国水电建设集团路桥工程有限公司 | Construction method for road foundation |
| CN102900001B (en) * | 2012-10-22 | 2015-04-29 | 中国水电建设集团路桥工程有限公司 | Construction method for road foundation |
| CN107032706A (en) * | 2017-05-24 | 2017-08-11 | 西安汉河环保科技有限公司 | A kind of sub-surface forming method for using drift-sand for raw material |
| CN107032706B (en) * | 2017-05-24 | 2019-07-09 | 西安汉河环保科技有限公司 | It is a kind of to use drift-sand for the sub-surface forming method of raw material |
| CN113800838A (en) * | 2021-11-05 | 2021-12-17 | 中南大学 | Road base material for highway and preparation method thereof |
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Open date: 20080827 |