CN110627452A - Environment-friendly high-performance coal gangue mixture base layer and preparation method thereof - Google Patents
Environment-friendly high-performance coal gangue mixture base layer and preparation method thereof Download PDFInfo
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- CN110627452A CN110627452A CN201911022084.8A CN201911022084A CN110627452A CN 110627452 A CN110627452 A CN 110627452A CN 201911022084 A CN201911022084 A CN 201911022084A CN 110627452 A CN110627452 A CN 110627452A
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- 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
- C04B28/04—Portland cements
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- 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
- C04B2111/00017—Aspects relating to the protection of the environment
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- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention relates to the technical field of road engineering materials, in particular to an environment-friendly high-performance coal gangue mixture base layer and a preparation method thereof, wherein the environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: the invention provides a composite material and a preparation method thereof, wherein the composite material comprises 72-81 parts of non-spontaneous combustion coal gangue coarse aggregate, 12.7-18.7 parts of spontaneous combustion coal gangue fine aggregate, 6.3-9.3 parts of non-spontaneous combustion coal gangue fine aggregate, 3-4 parts of cement, 0.1-0.2 part of curing accelerator, 5-9 parts of filler and 0.02-0.04 part of anti-crack fiber.
Description
Technical Field
The invention relates to the technical field of road engineering materials, in particular to an environment-friendly high-performance coal gangue mixture base layer and a preparation method thereof.
Background
The consciousness of effectively utilizing resources and reducing environmental pollution is gradually deepened, but the demand of traffic infrastructure (particularly road engineering) construction on building materials is greatly unbalanced with the limited natural sandstone resources. Coal gangue is a solid waste generated in the coal excavation and production processes, and along with the increase of coal mining quantity year by year, the coal gangue produced along with coal mining cannot be reasonably utilized, so that the national storage quantity of the coal gangue is increased year by year, and the problems of land occupation and pollution caused by coal gangue accumulation are not ignored. The application of the coal gangue in road engineering can realize the resource utilization of the coal gangue and relieve the situation that materials required by roads are increasingly tense.
Patent No. 2018109630052 discloses a composite curing admixture cement stabilized coal gangue mixture, and patent No. 2019100901829 discloses a composite admixture modified cement stabilized coal gangue mixture, both of which use non-spontaneous combustion coal gangue, and adopt various materials to solve the problem of coal gangue mixture cracking caused by poor firmness and large void ratio of the coal gangue. The coal gangue mixture of the patent of the last complaint has the characteristics of high compressive strength, good crack resistance and the like, but the construction cost is slightly high.
Therefore, develop a more cheap novel inorganic binder and stabilize gangue mixture, reduce natural grit exploitation, the rational utilization wastes material, and can solve the durability of gangue mixture basic unit relatively poor, easily appear disease such as crack, chap, settlement under the high frequency, the heavy load condition, reduce road later stage maintenance cost, extension road normal life with gangue mixture wide application in each grade road basic unit, be the urgent technical problem who waits to solve of present environment-friendly road engineering.
Disclosure of Invention
The invention aims to solve the technical problems of low early strength, serious shrinkage cracking and poor durability of a pavement base layer of the inorganic binder stabilized coal gangue mixture in the prior art and reduce the construction cost while ensuring the pavement performance of the inorganic binder stabilized coal gangue mixture.
In order to solve the technical problems, the invention adopts the following technical scheme:
the environment-friendly high-performance coal gangue mixture base layer is characterized by being prepared from the following raw materials in parts by weight: 72-81 parts of non-spontaneous combustion coal gangue coarse aggregate, 12.7-18.7 parts of spontaneous combustion coal gangue fine aggregate, 6.3-9.3 parts of non-spontaneous combustion coal gangue fine aggregate, 3-4 parts of cement, 0.1-0.2 part of curing accelerator, 5-9 parts of filler and 0.02-0.04 part of anti-cracking fiber.
Preferably, the self-ignition coal gangue heat-insulation material is prepared from the following raw materials, by weight, 76-77 parts of non-self-ignition coal gangue coarse aggregate, 15.5-16.0 parts of self-ignition coal gangue fine aggregate, 7.5 ~ 8.0.0 parts of non-self-ignition coal gangue fine aggregate, 3.2-3.7 parts of cement, 0.14-0.16 part of a curing accelerator, 6.5-7.5 parts of a filler and 0.03 part of anti-crack fibers.
Preferably, the spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate are obtained by crushing waste coal gangue by adopting an impact crushing method.
Preferably, the grading range of the coarse aggregate of the non-self-burning coal gangue is that the sieve mesh size is 26.5mm, the aggregate passing rate is 100%, the sieve mesh size is 19mm, the aggregate passing rate is 91 ~%, the sieve mesh size is 16mm, the aggregate passing rate is 87 ~%, the sieve mesh size is 13.2mm, the aggregate passing rate is 82 3669%, the sieve mesh size is 9.5mm, the aggregate passing rate is 74 ~%, the sieve mesh size is 4.75mm, the aggregate passing rate is 56 ~%, the sieve mesh size is 2.36mm, the aggregate passing rate is 48 ~%, the grading range of the fine aggregate of the self-burning coal gangue and the fine aggregate of the non-self-burning coal gangue is that the sieve mesh size is 2.36mm, the aggregate passing rate is 100%, the sieve mesh size is 1.18mm, the aggregate passing rate is 72 3663%, the sieve mesh size is 0.6mm, the aggregate passing rate is 50 ~%, the sieve mesh size is 0.3mm, the aggregate passing rate is 35 ~%, the sieve mesh size is 0.15mm, the aggregate passing rate is 25 ~%, and the sieve mesh size.
Preferably, the cement is ordinary portland cement and has a strength rating of 32.5 and/or 42.5.
Preferably, the curing accelerator is ultrafine calcium carbonate, and the primary particle size of the ultrafine calcium carbonate is less than or equal to 0.1 μm.
Preferably, the anti-crack fibers are cellulose fibers, the equivalent diameter of the anti-crack fibers is 14 ~ 20 microns, the tensile strength of the anti-crack fibers is more than 600MPa, and the elongation at break of the anti-crack fibers is less than 20%.
Preferably, the filler is high-calcium fly ash with dry discharge or wet discharge, the content of calcium oxide is not less than 15 percent, the loss on ignition is not more than 20 percent, and the specific surface area is more than 2500cm2/g。
A preparation method of an environment-friendly high-performance coal gangue mixture base layer comprises the following steps:
(1) weighing the raw materials according to the proportion, mixing and stirring the non-spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate uniformly, adding the filler and the anti-crack fibers, and stirring until the anti-crack fibers are uniformly dispersed to obtain a mixture;
(2) stirring the curing accelerator ultrafine calcium carbonate and water at a high speed according to the mass ratio of 1: 8 to obtain a mixed solution;
(3) and (3) adding a proper amount of water into the mixture obtained in the step (1) to blank the materials for 4 hours, adding cement, adding the mixed solution obtained in the step (2), and uniformly mixing to obtain the product.
Preferably, in the step (1), the water adding amount of the mixture obtained in the step (3) is controlled within the range of the optimal water content +/-2%.
Compared with the prior art, the invention has the beneficial technical effects that:
1. the invention relates to an environment-friendly high-performance coal gangue mixture base course, which is characterized in that spontaneous combustion coal gangue aggregates and non-spontaneous combustion coal gangue aggregates are added into the materials, the crushed non-spontaneous combustion coal gangue coarse aggregates have good aggregate characteristics, and the reasonably graded non-spontaneous combustion coal gangue aggregates can form an effective skeleton structure and bear higher vehicle load. Part of fine aggregate is replaced by spontaneous combustion coal gangue, the spontaneous combustion coal gangue has higher activity than non-spontaneous combustion coal gangue, and can generate volcanic ash reaction with other binders such as cement and the like in a longer period of time, so that the strength of the mixture is enhanced, micro cracks appear in the filling construction process, and the later-stage diseases of the road are reduced.
2. According to the environment-friendly high-performance coal gangue mixture base layer, the curing accelerator is added into the material, the superfine calcium carbonate has high activity, the generation of Ca2+ compounds can be promoted, more C-S-H substances with gelling performance are generated in the early stage, the early strength of the mixture is improved, and the environment-friendly high-performance coal gangue mixture base layer has better pavement performance.
3. The anti-cracking fiber is added into the material of the environment-friendly high-performance coal gangue mixture base layer, the cellulose fiber has higher tensile strength and lower elongation, micro cracks formed by each unit of the mixture due to drying shrinkage and thermal shrinkage can be effectively inhibited, and the crack is reduced by matching with the binder and the cementing material generated by hydration or volcanic ash reaction of the spontaneous combustion coal gangue, so that the cracks and the diseases such as cracks, transverse and longitudinal seams and the like of the road surface due to reflection cracks are reduced.
4. According to the environment-friendly high-performance coal gangue mixture base layer, the aggregate and the filler fly ash are all waste utilization, the source is wide, other adopted reagents are environment-friendly and pollution-free, the preparation process is environment-friendly and energy-saving, and good economic and social benefits are achieved.
Detailed Description
The following examples are given to illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention in any way. The instruments and devices referred to in the following examples are conventional instruments and devices unless otherwise specified; the industrial raw materials are all conventional industrial raw materials which are sold on the market, if not specifically mentioned.
Example 1
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 3.5 parts of cement, 0.15 part of curing accelerator, 7 parts of filler and 0.03 part of anti-crack fiber.
Example 2
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 3 parts of cement, 0.15 part of curing accelerator, 7 parts of filler and 0.03 part of anti-crack fiber
Example 3
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 3.5 parts of cement, 0.1 part of curing accelerator, 7 parts of filler and 0.03 part of anti-crack fiber
Example 4
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 3.5 parts of cement, 0.15 part of curing accelerator, 5 parts of filler and 0.03 part of anti-crack fiber.
Example 5
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 3.5 parts of cement, 0.15 part of curing accelerator, 5 parts of filler and 0.02 part of anti-crack fiber.
Example 6
An environment-friendly high-performance coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate, 4 parts of cement, 0.2 part of curing accelerator, 9 parts of filler and 0.04 part of anti-crack fiber.
Comparative example 1:
a stable gangue mixture base layer for ordinary cement is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.7 parts of spontaneous combustion coal gangue fine aggregate, 7.8 parts of non-spontaneous combustion coal gangue fine aggregate and 3 parts of cement.
Comparative example 2:
an environment-friendly cement-stabilized non-spontaneous combustion coal gangue mixture base layer is prepared from the following raw materials in parts by weight: 76.5 parts of non-spontaneous combustion coal gangue coarse aggregate, 23.5 parts of non-spontaneous combustion coal gangue fine aggregate, 5 parts of cement, 0.3 part of curing accelerator, 8 parts of filler and 0.05 part of anti-crack fiber.
The non-spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate in the embodiments 1 to 6 are all solid wastes, are obtained by crushing coal gangue by a back-impact crushing method, and meet the requirements of technical rules of construction of highway pavement base (JTG/T F20-2015); the gradation of the non-spontaneous combustion coal gangue coarse aggregate can adopt the gradation range recommended in the following table 1; the gradation of the spontaneous combustion coal gangue fine aggregate can adopt the gradation range recommended in the table 2; the grading range of the non-pyrophoric coal gangue fine aggregate can be adopted in the grading range recommended in the table 3.
The cement is ordinary portland cement, the strength grade is 32.5 and/or 42.5, and the cement meets the requirements of technical rules of highway pavement base course construction (JTG/T F20-2015), the curing accelerator is ultrafine calcium carbonate (CaCO 3), the primary particle size is not more than 0.1 mu m, the filler is dry-discharged or wet-discharged high-calcium fly ash, the content of calcium oxide (CaO) is not less than 15%, the ignition loss is not more than 20%, the specific surface area is more than 2500cm2/g, the anti-crack fiber is cellulose fiber, the equivalent diameter is 14 ~ 20 mu m, the tensile strength is more than 600MPa, and the elongation at break is less than 20%.
The preparation method of the environment-friendly high-performance coal gangue mixture base layer in the embodiment 1-6 comprises the following steps:
(1) weighing the raw materials according to the mixing ratio in the embodiment;
(2) mixing and stirring the non-spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate for 2 ~ 3min to be uniform, adding the filler and the anti-crack fibers, stirring for 1 ~ 2min to be uniform, and checking the dispersibility of the anti-crack fibers after the stirring is finished;
(3) dissolving the curing accelerator superfine calcium carbonate and water in a certain mass ratio in purified water, and stirring the mixed solution at a high speed;
(4) and (3) adding a proper amount of water into the mixture obtained in the step (2) to seal the materials for 4 hours, adding the cement, adding the superfine calcium carbonate mixed solution obtained in the step (3), and uniformly mixing to obtain the environment-friendly high-performance coal gangue mixture base layer.
The above comparative example 1 and comparative example 2 were prepared according to the above preparation method.
The environment-friendly high-performance gangue mixture base obtained in the examples 1-6 and the ordinary cement stable gangue mixture obtained in the comparative example 1-2 are subjected to a pavement performance test, and the specific test method is as follows: performing compaction tests according to an inorganic binder stable material vibration compaction test method (T0842-2009) in Highway engineering inorganic binder stable material test regulations (JTG E51-2009); the test piece is subjected to road performance test after being molded and cured, the test items comprise unconfined compressive strength test, dry shrinkage test and temperature shrinkage test, and the test items are used for testing the road performance of the environment-friendly high-performance coal gangue mixture base layer, and the specific test results are shown in table 4:
the cost price required for producing the mixture in the above embodiment is calculated by referring to the unit price (free of tax) of the road material in Henan province in 8 months in 2019 and market price inquiry, and the unit price of the raw materials is as follows: 120 yuan/ton of spontaneous combustion coal gangue aggregate, 125 yuan/ton of non-spontaneous combustion coal aggregate, 350 yuan/ton of cement, 55 yuan/ton of fly ash, 1500 yuan/ton of superfine calcium carbonate and 15000 yuan/ton of cellulose fiber.
The total prices for examples 1-6 and comparative examples 1-2 are given in Table 5 below:
as can be seen from tables 4 and 5, the environment-friendly high-performance coal gangue mixture base layer meets the relevant requirements of high-speed highways and first-class highways in the technical Specification for construction of highway pavement base (JTG/T F20-2015) issued by the Ministry of transportation, and the indexes of compressive strength, flexural tensile strength, drying shrinkage resistance, freezing and thawing resistance and the like of the environment-friendly high-performance coal gangue mixture base layer are obviously higher than those of the common cement stable coal gangue mixture, so that the environment-friendly high-performance coal gangue mixture base layer has excellent road performance and good engineering economy.
Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes in the specific parameters of the embodiments may be made without departing from the spirit of the present invention, and a plurality of specific embodiments are formed, which are common variations of the present invention, and will not be described in detail herein.
Claims (10)
1. The environment-friendly high-performance coal gangue mixture base layer is characterized by being prepared from the following raw materials in parts by weight: 72-81 parts of non-spontaneous combustion coal gangue coarse aggregate, 12.7-18.7 parts of spontaneous combustion coal gangue fine aggregate, 6.3-9.3 parts of non-spontaneous combustion coal gangue fine aggregate, 3-4 parts of cement, 0.1-0.2 part of curing accelerator, 5-9 parts of filler and 0.02-0.04 part of anti-cracking fiber.
2. The environment-friendly high-performance coal gangue mixture base layer as claimed in claim 1, which is prepared from the following raw materials, by weight, 76-77 parts of non-spontaneous combustion coal gangue coarse aggregate, 15.5-16.0 parts of spontaneous combustion coal gangue fine aggregate, 7.5 ~ 8.0.0 parts of non-spontaneous combustion coal gangue fine aggregate, 3.2-3.7 parts of cement, 0.14-0.16 part of curing accelerator, 6.5-7.5 parts of filler and 0.03 part of anti-cracking fiber.
3. The environment-friendly high-performance coal gangue mixture base layer as claimed in claim 1 or 2, wherein the spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate are obtained by crushing waste coal gangue by a back-impact crushing method.
4. The environment-friendly high-performance coal gangue mixture base course as claimed in claim 1 or 2, wherein the grading range of the non-spontaneous combustion coal gangue coarse aggregate is 26.5mm mesh size, 100% aggregate passing rate, 19mm mesh size, 91 ~% aggregate passing rate, 16mm mesh size, 87 ~% aggregate passing rate, 13.2mm mesh size, 82 3669% aggregate passing rate, 9.5mm mesh size, 74 5659% aggregate passing rate, 4.75mm mesh size, 56 ~% aggregate passing rate, 2.36mm mesh size, 48 ~% aggregate passing rate, the grading range of the coal gangue fine and non-coal gangue fine aggregate is 2.36mm mesh size, 100% aggregate passing rate, 1.18mm mesh size, 72 ~% aggregate passing rate, 0.6mm mesh size, 50 ~% aggregate passing rate, 0.3mm mesh size, 35% aggregate passing rate, 0.15mm mesh size, ~.25% aggregate passing rate, 3mm mesh size, 11.11% aggregate passing rate.
5. The environment-friendly high-performance coal gangue mixture base layer as defined in claim 1 or 2, wherein the cement is ordinary portland cement and the strength grade is 32.5 and/or 42.5.
6. The environment-friendly high-performance coal gangue mixture base layer as defined in claim 1 or 2, wherein the curing accelerator is ultrafine calcium carbonate, and the primary particle size of the ultrafine calcium carbonate is less than or equal to 0.1 μm.
7. The environment-friendly high-performance coal gangue mixture base layer as set forth in claim 1 or 2, wherein the anti-crack fiber is a cellulose fiber, the equivalent diameter is 14 ~ 20 μm, the tensile strength is more than 600MPa, and the elongation at break is less than 20%.
8. The environment-friendly high-performance coal gangue mixture base layer as defined in claim 1 or 2, wherein: the filler is high-calcium fly ash with dry discharge or wet discharge, the content of calcium oxide is not less than 15 percent, the loss on ignition is not more than 20 percent, and the specific surface area is more than 2500cm2/g。
9. The preparation method of the environment-friendly high-performance coal gangue mixture base layer as claimed in claim 1 or 2, which is characterized by comprising the following steps:
(1) weighing the raw materials according to the proportion, mixing and stirring the non-spontaneous combustion coal gangue coarse aggregate, the spontaneous combustion coal gangue fine aggregate and the non-spontaneous combustion coal gangue fine aggregate uniformly, adding the filler and the anti-crack fibers, and stirring until the anti-crack fibers are uniformly dispersed to obtain a mixture;
(2) stirring the curing accelerator ultrafine calcium carbonate and water at a high speed according to the mass ratio of 1: 8 to obtain a mixed solution;
(3) and (3) adding a proper amount of water into the mixture obtained in the step (1) to blank the materials for 4 hours, adding cement, adding the mixed solution obtained in the step (2), and uniformly mixing to obtain the product.
10. The method for preparing the environment-friendly high-performance coal gangue mixture base layer as claimed in claim 9, wherein in the step (1), the water addition amount of the mixture obtained in the step (3) is controlled according to the range of the optimal water content +/-2%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851230A (en) * | 2021-01-14 | 2021-05-28 | 辽宁工程技术大学 | Spontaneous combustion gangue aggregate self-compaction structure heat insulation concrete and preparation method thereof |
| CN113060986A (en) * | 2021-03-19 | 2021-07-02 | 西安建筑科技大学 | Road base layer stabilizing material and inorganic binder thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973883A (en) * | 2015-08-04 | 2015-10-14 | 珲春吕佳建材有限公司 | Coal gangue novel lightweight wall material and preparation method |
| CN106830738A (en) * | 2017-01-18 | 2017-06-13 | 包宗义 | The roadbase compound of special soil body stabilizing agent recycling treatment gangue manufacture |
| CN108101450A (en) * | 2017-12-15 | 2018-06-01 | 东南大学 | A kind of cement stabilized base course material and its design method |
| CN109180081A (en) * | 2018-08-22 | 2019-01-11 | 华北水利水电大学 | Modified cement stabilized road base mixture of compound additive and preparation method thereof |
| CN109626884A (en) * | 2019-01-30 | 2019-04-16 | 华北水利水电大学 | Composite curing additive cement stabilized road base mixture and its application method |
-
2019
- 2019-10-25 CN CN201911022084.8A patent/CN110627452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104973883A (en) * | 2015-08-04 | 2015-10-14 | 珲春吕佳建材有限公司 | Coal gangue novel lightweight wall material and preparation method |
| CN106830738A (en) * | 2017-01-18 | 2017-06-13 | 包宗义 | The roadbase compound of special soil body stabilizing agent recycling treatment gangue manufacture |
| CN108101450A (en) * | 2017-12-15 | 2018-06-01 | 东南大学 | A kind of cement stabilized base course material and its design method |
| CN109180081A (en) * | 2018-08-22 | 2019-01-11 | 华北水利水电大学 | Modified cement stabilized road base mixture of compound additive and preparation method thereof |
| CN109626884A (en) * | 2019-01-30 | 2019-04-16 | 华北水利水电大学 | Composite curing additive cement stabilized road base mixture and its application method |
Non-Patent Citations (2)
| Title |
|---|
| 段晓牧等: "煤矸石细集料对水泥浆体微观结构的影响及其作用机理", 《建筑材料学报》 * |
| 混凝土外加剂及其应用技术论坛: "《聚羧酸系高性能减水剂及其引用技术新进展-2019》", 31 March 2019, 北京理工大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851230A (en) * | 2021-01-14 | 2021-05-28 | 辽宁工程技术大学 | Spontaneous combustion gangue aggregate self-compaction structure heat insulation concrete and preparation method thereof |
| CN113060986A (en) * | 2021-03-19 | 2021-07-02 | 西安建筑科技大学 | Road base layer stabilizing material and inorganic binder thereof |
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