CN100364918C - Inorganic regenerated concrete mixture and its preparing method - Google Patents
Inorganic regenerated concrete mixture and its preparing method Download PDFInfo
- Publication number
- CN100364918C CN100364918C CNB031422004A CN03142200A CN100364918C CN 100364918 C CN100364918 C CN 100364918C CN B031422004 A CNB031422004 A CN B031422004A CN 03142200 A CN03142200 A CN 03142200A CN 100364918 C CN100364918 C CN 100364918C
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- Prior art keywords
- cement
- concrete
- flyash
- reclaimed
- water
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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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- Road Paving Structures (AREA)
Abstract
The present invention relates to an inorganic regenerated concrete mixture and a preparing method thereof. The inorganic regenerated concrete mixture is prepared by the following steps: waste concrete regenerated aggregates and industrial waste slag are adopted as main materials; an activating agent and water are added for a stir. The mixture has the characteristics of high strength, good hydraulicity and strong deformation resistance. The mixture as the ideal construction material for a road base can be widely used for the road construction in soft soil foundation areas.
Description
Technical field
The invention belongs to road engineering base material technical field, being specifically related to a kind of is main raw material and a kind of novel compound of synthetic and preparation method with reclaimed concrete aggregate and industrial residue etc.
Background technology
In most of area of China, geological condition belongs to typical Udoll or clay more, and its maximum characteristics are that water stability is poor.Compressibility is yielding greatly.If adopt these weak soils or clay as roadbase or bed course, then clay can be under the effect of self and travelling load, make roadbed produce a series of diseases, form non-uniform settling or roadbed consolidation deformation, and make roadbed or road surface region of stress concentration or distortion accumulation occur, produce phenomenons such as pavement cracking, displacement, irregularity and bumping at bridge-head, thereby influenced work-ing life of road and traveling security, comfortableness to a great extent.
Improve soft soil roadbed stability, can take two kinds of methods; A kind of is that to take the construction processing roadbed be the subgrade strengthening method, and another kind is to adopt inorganic binder.Use first kind always on the engineering at present, it can be divided into two classes: a class is that sedimentation is handled, and comprises and quickens consolidation settlement and reduce total settlement two aspects; Another kind of is stabilizing treatment, and measures such as employing is changed and banketed, berm with superloading, compacted sand pile, lime (cement) stake increase skid resistance.At present, many abroad roadbeds all adopt the stabilized with inorganic binder roadbed, but on the one hand some material does not have the hydraulicity or the hydraulicity very little, can not really improve the stability of roadbed, on the other hand, adopt the inorganic binder of natural aggregate, can increase substantially the construction cost of road.
Summary of the invention
The objective of the invention is to propose a kind of novel roadbed material and preparation method with the higher hydraulicity and non-deformability.
The novel roadbed material that the present invention proposes is a kind of inorganic regeneration concrete compound, and it is a main component with reclaimed concrete aggregate and flyash, is aided with activeconstituents and adds water and stir and form, and it is as follows specifically to fill a prescription:
Cement: 0-5%
Slaked lime: 3-20%
Flyash: 10-30%
Reclaimed concrete aggregate: 60-85%
Above material counts by its mass percent, and its summation is 100%.
Water: 5-50%
The content of water counts by the per-cent of cement, slaked lime, flyash, reclaimed concrete aggregate gross dry weight.
Above-mentioned inorganic regeneration binder, the prescription that each component is comparatively suitable is:
Cement: 1-5%
Slaked lime: 5-10%
Flyash: 10-20%
Reclaimed concrete aggregate: 75%-85%
Water: 5-40%.
The each component metering method is the same.
Wherein each being formed divides the quality requirements of material as follows:
Cement: ordinary Portland cement, road cement, label 32.5 or 42.5 is advisable.
Slaked lime: unslaked lime must be cleared up the back and use, should be greater than the particulate content that 2.5mm does not clear up less than 40%, and CaO+MgO content must be greater than 40%.
Flyash: low, high-calcium fly ass that various qualities are qualified, and SiO
2+ Al
2O
3Loss on ignition should be less than 10% when total amount should be greater than 70%, 900 ℃, and water content should be less than 35%.
Reclaimed concrete aggregate: silt content must be less than 3% in the reclaimed concrete aggregate.
Above-mentioned inorganic regeneration concrete mixing material preparation process is as follows:
Take by weighing material by weight and pour in the stirrer, add water and stir and get final product.
Main raw of the present invention is that cement, slaked lime, flyash, reclaimed concrete aggregate fill and forms.Because this material has the hydraulicity, thus in water or moist place have advantages of higher stability.In addition,, during as roadbed, can not produce excessive deadweight distortion, can improve opposing travelling load destructive deformability simultaneously owing to itself lighter weight.
The present invention has the following advantages:
1) adopt this kind novel light material to make roadbed after, can improve road quality, prolong its life-span, and reduce its maintenance effect.
2) to adopt discarded concrete and industrial residue be main raw material in the present invention, can reclaim in a large number and efficiently utilize scrap feed material, also can save the land seizure amount in a large number.
3) adopt this kind mode to cooperate, can quicken roadbed and solidify the reduction of erection time.
4) make full use of discarded concrete and industrial residue, have tangible environment, economy and social synthesis's benefit.This achievement can be widely used in road base layer and building foundation bed course.
Embodiment
Embodiment 1:
Each set of dispense is such as following:
Cement: 165g
Slaked lime: 220g
Flyash 605g
5-15mm reclaimed concrete aggregate 2706g
20-40mm reclaimed concrete aggregate 1804g
Water: 649g
By the above proportional arrangement material following performance is arranged:
Optimum moisture content: 11.8%
Maximum dry density: 1.860g/cm
3
7d ultimate compression strength: 3.1MPa
Water-intake rate: 18%
Embodiment 2:
Each set of dispense is such as following:
Cement: 165g
Slaked lime: 165g
Flyash: 660g
5-15mm reclaimed concrete aggregate: 2706g
20-40mm reclaimed concrete aggregate 1804g
Water: 671g
The material property of Pei Heing is as follows according to the above ratio:
Optimum moisture content: 12.3%
Maximum dry density: 1.85g/cm
3
Ultimate compression strength: 2.2MPa
Water-intake rate 19%
Embodiment 3:
Each assembly is such as following:
Cement: 165g
Slaked lime 385g
Flyash 990g
5-15mm reclaimed concrete aggregate 2376g
20-40mm reclaimed concrete aggregate 1584g
Water: 765g
As follows by its performance of said ratio compounding ingredient:
Optimum moisture content: 13.9%
Maximum dry density: 1.77g/cm
3
Ultimate compression strength: 1.5MPa
Water ratio: 22%.
Claims (5)
1. an inorganic regeneration concrete compound is characterized in that with flyash, reclaimed concrete aggregate be main component, is aided with activeconstituents and adds the water stirring to form, and it is as follows specifically to fill a prescription:
Cement: 0-5%
Slaked lime: 3-20%
Flyash: 10-30%
Reclaimed concrete aggregate 60-85%
Above material is by the percentage calculation of its quality, and its summation is 100%;
Water: 5-50%
The content of water is pressed the percentage calculation of cement, slaked lime, flyash and reclaimed concrete aggregate gross dry weight;
Wherein said reclaimed concrete aggregate is obtained by the discarded concrete fragmentation, and its particle diameter is 5-15mm and 20-40mm, and silt content is no more than 3%.
2. inorganic regeneration concrete mixing material according to claim 1 is characterized in that each set of dispense is such as following:
Cement: 1-5%
Slaked lime: 5-10%
Flyash: 10-20%
Reclaimed concrete aggregate: 75%-85%
Water: 5-40%.
3. according to the described inorganic regeneration concrete compound of claim 1, it is characterized in that cement adopts ordinary Portland cement, road cement or silicate cement, label is 32.5 or 42.5.
4. according to the described inorganic regeneration concrete compound of claim 1, it is characterized in that fine coal sand adopts low calcium fly ash or high-calcium fly ass, and SiO
2+ Al
2O
3Total amount is greater than 70%.
5. the preparation method of an inorganic regeneration concrete compound as claimed in claim 1, it is characterized in that adopting following concrete steps: take by weighing by mass percentage in slaked lime, cement, flyash, the reclaimed concrete aggregate adding stirrer, add entry more in proportion, stirring gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031422004A CN100364918C (en) | 2003-08-09 | 2003-08-09 | Inorganic regenerated concrete mixture and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031422004A CN100364918C (en) | 2003-08-09 | 2003-08-09 | Inorganic regenerated concrete mixture and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1473787A CN1473787A (en) | 2004-02-11 |
| CN100364918C true CN100364918C (en) | 2008-01-30 |
Family
ID=34155653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031422004A Expired - Fee Related CN100364918C (en) | 2003-08-09 | 2003-08-09 | Inorganic regenerated concrete mixture and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100364918C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100427424C (en) * | 2005-01-19 | 2008-10-22 | 南京都市废弃物综合利用开发有限公司 | Reclaimed concrete aggregate two-ash broken stones |
| CN1305797C (en) * | 2005-08-25 | 2007-03-21 | 王立久 | Concrete capable of serving as cement raw material |
| CN1931774B (en) * | 2006-08-24 | 2010-08-18 | 南京都市废弃物综合利用开发有限公司 | Stabilized soil of regenerated building residue and lime and its preparation process |
| CN100431999C (en) * | 2006-08-24 | 2008-11-12 | 南京都市废弃物综合利用开发有限公司 | Mixed material of regenerated building residue and its prepn process |
| CN101407390B (en) * | 2008-10-28 | 2013-04-24 | 浙江大学宁波理工学院 | Porous cement concrete using regenerative concrete aggregate |
| CN101570426B (en) * | 2009-04-21 | 2012-07-04 | 同济大学 | Geo-polymer recycled concrete and preparation method thereof |
| CN101942869A (en) * | 2010-08-19 | 2011-01-12 | 桂林理工大学 | Manufacturing method of recycled low-strength concrete wall beam |
| CN102173684A (en) * | 2011-01-28 | 2011-09-07 | 青岛理工大学 | Concrete prepared from tunnel waste slag and high-content mineral admixture and preparation method |
| CN103011649A (en) * | 2012-12-04 | 2013-04-03 | 广州世正环保科技发展有限公司 | Method for preparing concrete regenerated active powder by using construction wastes |
| CN103332889B (en) * | 2013-05-17 | 2015-05-20 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Composite roadbed material |
| CN103936362A (en) * | 2014-03-24 | 2014-07-23 | 王欣 | Cement stabilizing soil based on regenerated concrete aggregates in different quality grades |
| CN104402336A (en) * | 2014-10-30 | 2015-03-11 | 叶香菲 | Precast concrete slab prepared from waste concrete as aggregate |
| CN108129125A (en) * | 2017-04-27 | 2018-06-08 | 钟建军 | A kind of inorganic regenerated concrete gathers materials |
| CN110963772A (en) * | 2019-12-30 | 2020-04-07 | 河南省公路工程局集团有限公司 | Recycled powder waste hydraulic pavement base material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296923A (en) * | 2000-01-26 | 2001-05-30 | 谭宏伟 | Process for preparing mineralized water specially adapted for tea |
| CN1298772A (en) * | 1999-12-06 | 2001-06-13 | 王健 | Process for treating and reclaiming construction garbage |
| US20030016797A1 (en) * | 2001-07-20 | 2003-01-23 | Adtran, Inc. | Method of establishing signaling rate for single-line digital subscriber link providing extended range ADSL service with auxiliary pots channel |
-
2003
- 2003-08-09 CN CNB031422004A patent/CN100364918C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298772A (en) * | 1999-12-06 | 2001-06-13 | 王健 | Process for treating and reclaiming construction garbage |
| CN1296923A (en) * | 2000-01-26 | 2001-05-30 | 谭宏伟 | Process for preparing mineralized water specially adapted for tea |
| US20030016797A1 (en) * | 2001-07-20 | 2003-01-23 | Adtran, Inc. | Method of establishing signaling rate for single-line digital subscriber link providing extended range ADSL service with auxiliary pots channel |
Non-Patent Citations (2)
| Title |
|---|
| 欧洲水泥混凝土路面综述. 查旭东.国外公路，第19卷第3期. 1999 * |
| 沥青混合料的组成设计. 高阳初.中南公路工程，第1期. 1987 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1473787A (en) | 2004-02-11 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20040211 Assignee: SHENZHEN HUAWEI ENVIRONMENTAL PROTECTION BUILDING MATERIAL Co.,Ltd. Assignor: Tongji University Contract record no.: 2012440020464 Denomination of invention: Inorganic regenerated concrete mixture and its preparing method Granted publication date: 20080130 License type: Exclusive License Record date: 20121228 |
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