CN102336547B - Cement asphalt mortar with high elastic damping - Google Patents
Cement asphalt mortar with high elastic damping Download PDFInfo
- Publication number
- CN102336547B CN102336547B CN201110177062.6A CN201110177062A CN102336547B CN 102336547 B CN102336547 B CN 102336547B CN 201110177062 A CN201110177062 A CN 201110177062A CN 102336547 B CN102336547 B CN 102336547B
- Authority
- CN
- China
- Prior art keywords
- cement
- asphalt mortar
- emulsified bitumen
- water
- rubber powder
- 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.)
- Active
Links
Abstract
The invention provides a cement asphalt mortar. The cement asphalt mortar comprises cement, an expanding agent, sand, emulsified bitumen, water, a water reducer, an antifoaming agent, aluminum powder and rubber powder; The mass part ratio of cement to expanding agent to sand to emulsified bitumen to water to water reducer to antifoaming agent to aluminum powder to rubber powder is 90: (5-15): (100-180): (25-45): (15-30): (0.1-1.5): (0.01-0.15): (0.001-0.02): (1-20). According to the invention, rubber powder recovered by old tire can replace of partial emulsified bitumen or sand, under the condition of keeping certain intensity, the rubber powder has better damping performance than that of asphalt, simultaneously the rubber powder has low temperature sensitivity and is capable of keeping good damping performance under the various temperature; the adopted polypropylene fiber is capable of improving the uniformity of a cement asphalt mortar mixture, substantially raising the workability of the cement asphalt mortar mixture and enhancing the crack resistance and volume stability of the mortar.
Description
Technical field
The present invention relates to a kind of cement asphalt mortar of high elastic damping, be suitable for inter-city high-speed rail, expressway around city light rail and city underground and use.
Background technology
Chinese patent application 200710149995.8, Chinese patent application 200710078508.3 and Chinese patent application 200710078480.3 disclose respectively a kind of emulsified bitumen, it is all to adopt cationic emulsifier and the compound of nonionic emulsifying agent to prepare emulsified bitumen as emulsifying agent, part emulsified bitumen has carried out practical application, respond well.But above-mentioned emulsified bitumen is to be used in cell board non-fragment orbit cement emulsified asphalt mortar, and inapplicable for vertical connected plate type unballasted track cement emulsified bituminous mortar.
Chinese patent 200910076818.0 discloses a kind of emulsified bitumen, for vertical linking-board type non-fragment orbit.But, the high and low temperature poor stability of its emulsified bitumen, the early strength of cement emulsified asphalt mortar is lower, in the stability of cement emulsified asphalt mortar and high low temperature workability, has much room for improvement.
Summary of the invention
The object of this invention is to provide a kind of high elastic damping, cement asphalt mortar that workability is good.
Cement asphalt mortar provided by the invention, comprises cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder and rubber powder; The ratio of quality and the number of copies of described cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder and rubber powder is 90: (5-15): (100-180): (25-45): (15-30): (0.1-1.5): (0.01-0.15): (0.001-0.02): (1-20).
In above-mentioned cement asphalt mortar, the granularity of described rubber powder is 30 order～200 orders; Waste Crumb rubber for old tire recovery.
In above-mentioned cement asphalt mortar, described cement can be silicate cement; Specifically can be P I 42.5 cement, P I 52.5 cement, PII42.5 cement, PII52.5 cement, PO 42.5 cement or PO 52.5 cement; Described swelling agent can be UEA swelling agent.
In above-mentioned cement asphalt mortar, described sand can be common thin river sand; The fineness modulus of described sand can be 1.4-1.8; Described emulsified bitumen can be and splits slowly type anionic emulsified bitumen, is applicable to vertical connected plate type unballasted track cement emulsified bituminous mortar.
In above-mentioned cement asphalt mortar, described water reducer can be polycarboxylate dehydragent; Described defoamer is Polyether Modified Polysiloxanes Defoaming Agent, defoamer as new and effective in DXP-008.
In above-mentioned cement asphalt mortar, the granularity of described aluminium powder is 200 order-250 orders.
In above-mentioned cement asphalt mortar, described mortar also can comprise polypropylene fibre; The ratio of quality and the number of copies of described polypropylene fibre and cement can be (0.1-2.0): 90, specifically can be 1.0: 90,1.5: 90 or 2.0: 90.
Above-mentioned cement asphalt mortar is comprised of cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre; The ratio of quality and the number of copies of described cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre can be 90: (5-15): (100-180): (25-45): (15-30): (0.1-1.5): (0.01-0.15): (0.001-0.02): (1-20): (0.1-2.0).
In above-mentioned cement asphalt mortar, the ratio of quality and the number of copies of described cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre specifically can be 90: 10: 132: 37: 19: 1.0: 0.07: 0.005: 3: 1.5,90: 10: 180: 45: 15: 1.5: 0.07: 0.005: 1.0: 1.0,90: 10: 124: 37: 20: 1.5: 0.07: 0.005: 6: 1.0 or 90: 10: 108: 25: 10: 1.5: 0.07: 0.005: 12:2.
In above-mentioned cement asphalt mortar, the length of described polypropylene fibre can be 6mm.
Above-mentioned cement asphalt mortar provided by the invention can be prepared according to the method that comprises following step:
A, prepare siccative: according to the mix capacity of the stirrer using, according to described quality proportioning, prepare described cement, swelling agent, sand, polypropylene fibre, rubber powder and aluminium powder, through stirrer, stir and make the dry mash mixing;
B, prepare cement asphalt mortar: according to the mix capacity of stirrer and the mix amount of actual needs used, according to described quality proportioning, add described emulsified bitumen, water, water reducer and defoamer, the dry mash that drops into again above-mentioned quality proportioning after stirring is stirred to even mixing and obtains described cement pitch sand mortar.
Wherein, the mixing speed in the step a of aforesaid method can be 80r/min～120r/min, and churning time can be 5min～6min; In aforesaid method step b, add after described emulsified bitumen, water, water reducer and defoamer, mixing speed can be 60r/min～80r/min, churning time can be 30s, then add pre-assigned described dry mash, mixing speed can be 60r/min～80r/min, and churning time can be 60s～90s, then changing mixing speed is 110r/min～120r/min, churning time is 150s～200s, and finally changing mixing speed is 40r/min～60r/min, and churning time is 60s～90s.
The present invention adopts prewired solid-state siccative powder, then joins the preparation method who stirs in the liquid material mixing, and only needs a gap to feed intake in whole process, removes to control the properties of mixture by changing mixing speed and time.Because the process of feeding intake is simple, be not vulnerable to bring the impact on cement asphalt mortar performance because gap repeatedly feeds intake, as the distribution that drops into the water yield in each in process in stage can have influence on mortar air content number and mobility, the cement asphalt mortar performance that this preparation method is produced is more stable.
Rubber powder Substitute For Partial emulsified bitumen or sand that the present invention adopts old tire to reclaim, rubber powder has better damping capacity with respect to pitch in the situation that keeping intensity certain, the temperature sensitivity of rubber powder is low simultaneously, all can keep good damping capacity at various temperatures; Mix polypropylene fibre simultaneously, not only improved the homogeneity of cement asphalt mortar mixture, greatly improved the workability of cement asphalt mortar mixture, also improved resistance to cleavage and the volume stability of mortar.
Embodiment
The experimental technique using in following embodiment if no special instructions, is ordinary method.
In following embodiment, material used, reagent etc., if no special instructions, all can obtain from commercial channels.
In the following embodiment of the present invention and comparative example, swelling agent used is UEA swelling agent; Slowly splitting type anionic emulsified bitumen is ER type anion slow-cracking type emulsified bitumen; Polycarboxylate dehydragent is UNF-5AST polycarboxylate dehydragent; Silicone antifoam agent is the new and effective defoamer of DXP-008; The length of polypropylene fibre is 6mm; The granularity of aluminium powder is 200 order-250 orders.
The preparation of embodiment 1, cement asphalt mortar
(1) preparation of dry mash: P I 42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4), aluminium powder (200 order) and rubber powder (granularity is 30 orders) are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand, aluminium powder and rubber powder is 90: 10: 132: 0.005: 3;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder and rubber powder is 90: 10: 132: 37: 19: 1.0: 0.07: 0.005: 3.
The Specifeca tion speeification of cement asphalt mortar prepared by the present embodiment is as shown in table 1.
The preparation of embodiment 2, cement asphalt mortar
(1) preparation of dry mash: P I 52.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4), aluminium powder (200 order), rubber powder (granularity is 200 orders) and polypropylene fibre are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of P I 52.5 cement, UEA swelling agent, river sand, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 132: 0.005: 3: 1.5;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of P I 52.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 132: 37: 19: 1.0: 0.07: 0.005: 3: 1.5.
The Specifeca tion speeification of cement asphalt mortar prepared by the present embodiment is as shown in table 1.
The preparation of embodiment 3, cement asphalt mortar
(1) preparation of dry mash: PII42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4), aluminium powder (200 order), rubber powder (granularity is 150 orders) and polypropylene fibre are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of PII 42.5 cement, UEA swelling agent, river sand, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 180: 0.01: 1: 1;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of PII 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 180: 45: 15: 1.5: 0.07: 0.01: 1: 1.
The Specifeca tion speeification of cement asphalt mortar prepared by the present embodiment is as shown in table 1.
The preparation of embodiment 4, cement asphalt mortar
(1) preparation of dry mash: PII52.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4), aluminium powder (200 order), rubber powder (granularity is 200 orders) and polypropylene fibre are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of PII 52.5 cement, UEA swelling agent, river sand, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 124: 0.005: 6: 1;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of PII 52.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 124: 37: 20: 1.5: 0.07: 0.005: 6: 1.
The Specifeca tion speeification of cement asphalt mortar prepared by the present embodiment is as shown in table 1.
The preparation of embodiment 5, cement asphalt mortar
(1) preparation of dry mash: PO 42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4), aluminium powder (200 order), rubber powder (granularity is 200 orders) and polypropylene fibre are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of PO 42.5 cement, UEA swelling agent, river sand, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 108: 0.005: 12: 2;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of PO 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre is 90: 10: 108: 25: 30: 1.5: 0.07: 0.005: 12: 2.
The Specifeca tion speeification of cement asphalt mortar prepared by the present embodiment is as shown in table 1.
The preparation of comparative example 1, cement asphalt mortar
(1) preparation of dry mash: P I 42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4) and aluminium powder (200 order) are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand and aluminium powder is 90: 10: 140: 0.005;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate dehydragent and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer and aluminium powder is 90: 10: 140: 35: 20: 1.0: 0.07: 0.005.
The Specifeca tion speeification of cement asphalt mortar prepared by this comparative example is as shown in table 1.
The preparation of comparative example 2, cement asphalt mortar
(1) preparation of dry mash: P I 42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4) and aluminium powder (200 order) are mixed and stirred obtaining dry mash; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand and aluminium powder is 90: 10: 140: 0.005;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate water-reducer and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer and aluminium powder is 90: 10: 140: 37: 19: 1.0: 0.07: 0.005.
The Specifeca tion speeification of cement asphalt mortar prepared by this comparative example is as shown in table 1.
The preparation of comparative example 3, cement asphalt mortar
(1) preparation of dry mash: by P I 42.5 cement, UEA swelling agent, river sand (fineness modulus is 1.4) and
Aluminium powder (200 order) mixes and stirs and obtains dry mash; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand and aluminium powder is 90: 10: 140: 0.005;
(2) preparation of cement asphalt mortar: will split slowly type anionic emulsified bitumen, water, polycarboxylate water-reducer and silicone antifoam agent and mix and stir and obtain liquid mixture, and this liquid mixture is dropped in dry mash that upper step obtains and stirred obtain cement asphalt mortar; Wherein, the ratio of quality and the number of copies of P I 42.5 cement, UEA swelling agent, river sand, emulsified bitumen, water, water reducer, defoamer and aluminium powder is 90: 10: 140: 40: 18: 1.0: 0.07: 0.005.
The Specifeca tion speeification of cement asphalt mortar prepared by this comparative example is as shown in table 1.
The salient features of table 1 embodiment 1-5 and comparative example 1-3 cement asphalt mortar
Performance perameter in above-mentioned table 1 is to measure according to the test method in the provisional technical qualification > > of the special line railway CRTS I of < < traveller plate-type non-fragment orbit cement emulsified asphalt mortar.
As can be seen from Table 1: mix the elasticity (Young's modulus reduction, elasticity increase) that rubber powder can improve cement asphalt mortar in the situation that not affecting ultimate compression strength, damping capacity increases; Add after polypropylene fibre, the degree of mobilization of cement asphalt mortar without much variations but divergence diminish, the cohesiveness that cement asphalt mortar is described is improved, add the material separation degree of cement asphalt mortar after polypropylene fibre significantly to reduce simultaneously, greatly improved the uniformity of cement asphalt mortar; The rate of expansion of 24h also increases, and illustrates that the anti-contracility of cement asphalt mortar makes moderate progress.
Claims (1)
1. a cement asphalt mortar, is comprised of cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre; The ratio of quality and the number of copies of described cement, swelling agent, sand, emulsified bitumen, water, water reducer, defoamer, aluminium powder, rubber powder and polypropylene fibre is 90:(5-15): (100-180): (25-45): (15-30): (0.1-1.5): (0.01-0.15): (0.001-0.02): (1-20): (0.1-2.0); Described rubber powder granularity is 30 order-200 orders; Described cement is silicate cement; Described swelling agent is UEA swelling agent; The fineness modulus of described sand is 1.4-1.8; Described emulsified bitumen is for splitting slowly type anionic emulsified bitumen; Described water reducer is polycarboxylate dehydragent; Described defoamer is silicone antifoam agent; The granularity of described aluminium powder is 200 order-250 orders; The length of described polypropylene fibre is 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110177062.6A CN102336547B (en) | 2011-06-28 | 2011-06-28 | Cement asphalt mortar with high elastic damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110177062.6A CN102336547B (en) | 2011-06-28 | 2011-06-28 | Cement asphalt mortar with high elastic damping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102336547A CN102336547A (en) | 2012-02-01 |
| CN102336547B true CN102336547B (en) | 2014-03-26 |
Family
ID=45512553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110177062.6A Active CN102336547B (en) | 2011-06-28 | 2011-06-28 | Cement asphalt mortar with high elastic damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102336547B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693934B (en) * | 2013-12-07 | 2015-12-02 | 马鞍山市金韩防水保温工程有限责任公司 | A kind of for the thermal insulation mortar in building field |
| CN105130285A (en) * | 2015-07-03 | 2015-12-09 | 大连科诺拓金科技股份有限公司 | Microstress fiber mortar mixture applied to exterior-wall surface |
| CN106587842A (en) * | 2016-12-16 | 2017-04-26 | 江苏道润工程技术有限公司 | Semi-flexible pavement material, preparation method therefor and semi-flexible pavement |
| CN107082600A (en) * | 2017-03-14 | 2017-08-22 | 中国十七冶集团有限公司 | A kind of new high-damping buffering tar sand material and preparation method |
| CN108755325B (en) * | 2018-05-25 | 2020-11-13 | 长安大学 | Cold region fabricated road and construction method thereof |
| CN108689624A (en) * | 2018-07-06 | 2018-10-23 | 佛山陵朝新材料有限公司 | A kind of high mating type discards the preparation method of rubber powder composite mortar material |
| CN108751871A (en) * | 2018-07-26 | 2018-11-06 | 成都理工大学 | A kind of modified cement-based grouting material of waste Crumb rubber |
| CN110041827B (en) * | 2019-05-07 | 2021-04-13 | 内蒙古煤矿设计研究院有限责任公司 | Waterproof anticorrosive paint for coal conveying trestle leakage repair |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033122A (en) * | 2007-01-12 | 2007-09-12 | 铁道科学研究院金属及化学研究所 | Emulsification asphalt cement mortar for plate-type slag-free orbit and its preparing method and application |
| CN101172823A (en) * | 2007-09-30 | 2008-05-07 | 江苏博特新材料有限公司 | Rubber powder modified concrete asphalt mortar |
| CN101767964A (en) * | 2009-12-25 | 2010-07-07 | 北京工业大学 | Cement asphalt mortar material with low elastic modulus |
| CN101948623A (en) * | 2010-09-14 | 2011-01-19 | 江苏省苏安能节能建材科技有限公司 | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2835510B2 (en) * | 1996-12-19 | 1998-12-14 | 啓一郎 三輪 | Paving materials for roads, etc. |
-
2011
- 2011-06-28 CN CN201110177062.6A patent/CN102336547B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101033122A (en) * | 2007-01-12 | 2007-09-12 | 铁道科学研究院金属及化学研究所 | Emulsification asphalt cement mortar for plate-type slag-free orbit and its preparing method and application |
| CN101172823A (en) * | 2007-09-30 | 2008-05-07 | 江苏博特新材料有限公司 | Rubber powder modified concrete asphalt mortar |
| CN101767964A (en) * | 2009-12-25 | 2010-07-07 | 北京工业大学 | Cement asphalt mortar material with low elastic modulus |
| CN101948623A (en) * | 2010-09-14 | 2011-01-19 | 江苏省苏安能节能建材科技有限公司 | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-176112A 1998.06.30 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102336547A (en) | 2012-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102336547B (en) | Cement asphalt mortar with high elastic damping | |
| CN104030644B (en) | A kind of polymer cement mortar for high-speed railway plate type ballastless track filling bed | |
| CN101948623A (en) | Rubber powder modified emulsified asphalt and preparation method thereof and CA mortar prepared by emulsified asphalt | |
| CN102558885B (en) | Emulsified asphalt used for high-speed railway, mortar containing emulsified asphalt and preparation method of mortar | |
| CN103059581B (en) | Anti-freezing emulsified asphalt and preparation method thereof | |
| CN108503304B (en) | Emulsified asphalt in-situ cold recycled mixture and grading method and application thereof | |
| CN104277462A (en) | Emulsified asphalt for ballastless track cement emulsified asphalt mortar and preparation method of emulsified asphalt | |
| CN106186922A (en) | Semi rigid bituminous surface material and preparation method thereof | |
| CN112694304B (en) | Cold recycling and old asphalt pavement cold joint adhesive for pavement reconstruction and extension | |
| CN108484071B (en) | Foamed asphalt in-situ cold regeneration mixture and grading method and application thereof | |
| CN101624273A (en) | Asphalt mixture taking regenerative micro powder of waste concrete as filler | |
| CN111718166B (en) | Cold-mixing cold-paving asphalt mixture, preparation method thereof and asphalt pavement | |
| CN109180071B (en) | High-performance cold-mix mixture for road surface layer and preparation method thereof | |
| CN112939514A (en) | Quick-drying early-strength concrete suitable for rapid restoration of pavement slab and preparation method thereof | |
| CN103058589A (en) | Cement asphalt mortar and preparation method thereof | |
| CN101913801A (en) | Cast asphalt concrete material and preparation method thereof | |
| CN114806085A (en) | Dry-process epoxy modifier for road and bridge pavement, modified asphalt mixture, and preparation method and application thereof | |
| CN102336546A (en) | High cohesiveness CA mortar | |
| CN105948813A (en) | Foamed warm-mix recycled asphalt mixture and preparation method thereof | |
| CN103951305B (en) | Air entrapment agent, add the cement concrete of air entrapment agent and their application in slding form operation | |
| CN112252108A (en) | Road construction method for in-situ cold recycling of asphalt pavement | |
| CN112694296B (en) | Cold regeneration and road old water stabilization base course joint binder for road surface reconstruction and extension asphalt pavement | |
| CN102295436B (en) | Preparation method of cold-mixing rock asphalt macadam mixture | |
| CN108675718A (en) | A kind of Cement Treated Material and preparation method of addition gutter oil | |
| KR101149376B1 (en) | Fluid asphalt-concrete and manufacturing method of it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170222 Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee after: China National Offshore Oil Corporation Patentee after: China National Offshore Oil Corporation Patentee after: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: China National Offshore Oil and Gas Development and Utilization Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China National Offshore Oil Corporation Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China National Offshore Oil Corporation Patentee before: China National Offshore Oil Corporation Co-patentee before: CNOOC Refining & Chemical Research Institute (Beijing) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |