CN108929073A - The method for promoting cement stabilized macadam base material dry shrinkage resistance energy - Google Patents
The method for promoting cement stabilized macadam base material dry shrinkage resistance energy Download PDFInfo
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- CN108929073A CN108929073A CN201810864589.8A CN201810864589A CN108929073A CN 108929073 A CN108929073 A CN 108929073A CN 201810864589 A CN201810864589 A CN 201810864589A CN 108929073 A CN108929073 A CN 108929073A
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- water
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- stabilized macadam
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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
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- 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 kind of methods of promotion cement stabilized macadam base material dry shrinkage resistance energy.The following steps are included: designing cement stabilized macadam base material match ratio according to each shelves aggregate grading according to JTG D50-2006 " bituminous pavement design for highway specification ", JTG E42-2005 " highway engineering gather materials testing regulations "；Then compaction test is carried out according to JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation ", determines the optimum moisture content of cement stabilized macadam base material special cement dosage；The magnetized water, rubble and cement of optimum moisture content are mixed and stirred into obtained cement stabilized macadam base material；Wherein, the magnetized water is prepared in the following manner: using 3 GMX800 type water mangetizers, the water (flow) direction identified according to water mangetizer, it is sequentially placed the rubber pipe outer wall in caliber 20mm, it is divided into 25mm between each water mangetizer, controls light water with the flow velocity of 225mL/s by water mangetizer, magnetized water is made.
Description
Technical field
The invention belongs to cement material technical fields, and in particular to a kind of anti-drying shrinkage of promotion cement stabilized macadam base material
The method of performance.
Background technique
Not only intensity is high for cement stabilized macadam base material, and rigidity is big, and with good stability and plate body, machine
The advantages such as tool convenient construction, project cost be low, are widely used in road construction.But cement stabilized macadam base material
There is also significant defects, i.e., as the variation of mixture humidity is easy to produce dry contraction, when mixture tensile strength not
It is enough just to generate crack when resisting its contraction distortion.When asphalt surface course is relatively thin, crack, which diffuses to asphalt surface course and formed to reflect, to be split
Seam, destroys the globality and continuity of pavement structure, greatly reduces the service life of pavement structure, influences road travel peace
Entirely.
Researchers at home and abroad have carried out extensive research to the Dry Shrinkage Performance of cement stabilized macadam base material, related water
The research achievement of cement-stabilizing broken stone base material Dry Shrinkage Performance concentrates on using additive, optimization aggregate grading, improves construction work
Three aspects of skill, rarely have mixing water angle research cement stabilized macadam base of the researcher from cement stabilized macadam base material
The Dry Shrinkage Performance of layer material.Studies at home and abroad show that water is after magnetic field magnetizes, surface tension, conductivity, pH value, the viscosity of water
Etc. performances can all change, the property of the crushing resistance of cement concrete that uses magnetized water to produce, durability, frost resistance etc.
It can be better than light water cement concrete, and compared with light water cement concrete, cement water in magnetized water cement concrete
The structure for changing product is more evenly fine and close.The present invention uses for reference the application method of magnetized water in cement concrete, to each magnetization condition
On the basis of the magnetized water cement stabilized macadam base material Dry Shrinkage Performance of lower production carries out experimental study, propose to utilize magnetized water
The method for promoting cement stabilized macadam base material dry shrinkage resistance energy.
Summary of the invention
Present invention aims at the drying shrinkage reduced in the formation of cement stabilized macadam base material intensity and use process to split
Seam, promotes its dry shrinkage resistance energy.
In order to achieve the above objectives, as follows using technical solution:
The method for promoting cement stabilized macadam base material dry shrinkage resistance energy, comprising the following steps:
According to JTGD50-2006 " bituminous pavement design for highway specification ", JTGE42-2005, " highway engineering, which is gathered materials, tests rule
Journey " according to each shelves aggregate grading design cement stabilized macadam base material match ratio；
Then compaction test is carried out according to JTGE51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation ",
Determine the optimum moisture content of cement stabilized macadam base material special cement dosage；
The magnetized water, rubble and cement of optimum moisture content are mixed and stirred into obtained cement stabilized macadam base material；
Wherein, the magnetized water is prepared in the following manner:
It is sequentially placed according to the water (flow) direction that water mangetizer identifies in the rubber of caliber 20mm using 3 GMX800 type water mangetizers
Rubber hose outer wall is divided into 25mm between each water mangetizer, controls light water with the flow velocity of 225mL/s by water mangetizer, magnetized water is made.
The present invention having the beneficial effect that compared with the existing technology:
Water conductivity after magnetizing can all have a degree of increase, and pH value, the surface tension of water have a degree of
Reduce.The conductivity of water increases after magnetization, shows that charged ion is more active in magnetized water.After cement is added in magnetized water, cement
In ingredient react with water, various ions are dissolved in water, it is possible to by charged particle collision active in water, drive, thus
Accelerate the rate of hydration reaction.Solution ph reduces when hydrated cementitious, can accelerate hydrated reaction of cement and carry out to the right, be conducive to water
Growth, the hardening of mud hydrated product.Water reduces through magnetization rear surface tension, it may be possible to which the hydrogen bond between big water molecule cluster exists
It is destroyed under magnetic fields, and becomes structure small unit hydrone or small water molecule cluster, increased the activity of water, make various
Ion is easier to react with hydrone, this also accelerates hydration reaction speed to a certain extent, and makes hydrated reaction of cement more
Sufficiently.
Pore in magnetized water cement stabilized macadam base material is that the hydrated product of cement is filled existing for original water
Space and formed.Cement is quickly sufficiently carried out hydration reaction, and the fast-growth hardening of a large amount of hydrated products also reduces magnetic
Change capillary hole number in water cement stabilized macadam base material, reduces capillary water tension force effect to a certain extent, make magnetized water
The strain of cement stabilized macadam base material drying shrinkage reduces, and dry shrinkage resistance can enhance.
Detailed description of the invention
Fig. 1: magnetized water and light water cement stabilized macadam base material the drying shrinkage strain of cement dose 4.5%；
Fig. 2: magnetized water and light water cement stabilized macadam base material the drying shrinkage strain of cement dose 5.0%；
Fig. 3: magnetized water and light water cement stabilized macadam base material the drying shrinkage strain of cement dose 5.5%.
Specific embodiment
The present invention is described in further details combined with specific embodiments below, but invention is not limited to these embodiments.
Magnetized water of the invention is light water with the flow velocity of 225mL/s, flows through the rubber pipe outer wall for being placed in caliber 20mm
3 interval 25mm GMX800 type water mangetizers be made.In use, being used according to the optimum moisture content that compaction test determines
Magnetized water obtained mixes and stirs rubble and cement to form uniform cement stabilized macadam base material.
Test method used in the present invention includes: compaction test using JTG E51-2009 " highway engineering inorganic binder
Stabilizing material testing regulations " in stabilized with inorganic binder material compaction test method (T0804-1994)；Hydrostatic profile test
Using the stabilized with inorganic binder material examination in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
Part production method (beam type) (T0844-1009)；Health test uses JTG E51-2009 " highway engineering stabilized with inorganic binder
Testing of materials regulation " in stabilized with inorganic binder material health test method (T0845-2009)；Dry shrinkage testing uses JTG
Stabilized with inorganic binder material dry shrinkage testing side in E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
Method (T0854-2009).
Embodiment 1
3 GMX800 type water mangetizers are used first, according to the water (flow) direction that water mangetizer identifies, are sequentially placed in caliber 20mm
Rubber pipe outer wall, 25mm is divided between each water mangetizer, light water is controlled with the flow velocity of 225mL/s and passes through water mangetizer, production magnetization
Water.Then according to the stabilized with inorganic binder in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
Material compaction test method (T0804-1994) carries out the cement stabilized macadam base material compaction test of cement dose 4.5%,
Determine optimum moisture content and maximum dry density.Then according to determining optimum moisture content, light water and above-mentioned magnetization are used respectively
Under the conditions of magnetized water obtained, mix and stir production cement stabilized macadam base material.With 98% compactness, according to JTG E51-
Stabilized with inorganic binder material test specimen production method (beam in 2009 " highway engineering stabilized with inorganic binder testing of materials regulations "
Formula) (T0844-1009) hydrostatic profile light water cement stabilized macadam base material drying shrinkage test specimen and magnetized water cement stabilized macadam
Base material drying shrinkage test specimen.Using inorganic in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
After binder stabilizing material health test method (T0845-2009) health, using JTG E51-2009 " the inorganic knot of highway engineering
Close material stabilizing material testing regulations " in stabilized with inorganic binder material dry shrinkage test method (T0854-2009) carry out drying shrinkage examination
It tests.Drying shrinkage strain is detailed in Fig. 1 in its 31d age.
Embodiment 2
3 GMX800 type water mangetizers are used first, according to the water (flow) direction that water mangetizer identifies, are sequentially placed in caliber 20mm
Rubber pipe outer wall, 25mm is divided between each water mangetizer, light water is controlled with the flow velocity of 225mL/s and passes through water mangetizer, production magnetization
Water.Then according to the stabilized with inorganic binder in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
Material compaction test method (T0804-1994) carries out the cement stabilized macadam base material compaction test of cement dose 5.0%,
Determine optimum moisture content and maximum dry density.Then according to determining optimum moisture content, light water and above-mentioned magnetization are used respectively
Under the conditions of magnetized water obtained, mix and stir production cement stabilized macadam base material.With 98% compactness, according to JTG E51-
Stabilized with inorganic binder material test specimen production method (beam in 2009 " highway engineering stabilized with inorganic binder testing of materials regulations "
Formula) (T0844-1009) hydrostatic profile light water cement stabilized macadam base material drying shrinkage test specimen and magnetized water cement stabilized macadam
Base material drying shrinkage test specimen.Using inorganic in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
After binder stabilizing material health test method (T0845-2009) health, using JTG E51-2009 " the inorganic knot of highway engineering
Close material stabilizing material testing regulations " in stabilized with inorganic binder material dry shrinkage test method (T0854-2009) carry out drying shrinkage examination
It tests.Drying shrinkage strain is detailed in Fig. 2 in its 31d age.
Embodiment 3
3 GMX800 type water mangetizers are used first, according to the water (flow) direction that water mangetizer identifies, are sequentially placed in caliber 20mm
Rubber pipe outer wall, 25mm is divided between each water mangetizer, light water is controlled with the flow velocity of 225mL/s and passes through water mangetizer, production magnetization
Water.Then according to the stabilized with inorganic binder in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
Material compaction test method (T0804-1994) carries out the cement stabilized macadam base material compaction test of cement dose 5.5%,
Determine optimum moisture content and maximum dry density.Then according to determining optimum moisture content, light water and above-mentioned magnetization are used respectively
Under the conditions of magnetized water obtained, mix and stir production cement stabilized macadam base material.With 98% compactness, according to JTG E51-
Stabilized with inorganic binder material test specimen production method (beam in 2009 " highway engineering stabilized with inorganic binder testing of materials regulations "
Formula) (T0844-1009) hydrostatic profile light water cement stabilized macadam base material drying shrinkage test specimen and magnetized water cement stabilized macadam
Base material drying shrinkage test specimen.Using inorganic in JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation "
After binder stabilizing material health test method (T0845-2009) health, using JTG E51-2009 " the inorganic knot of highway engineering
Close material stabilizing material testing regulations " in stabilized with inorganic binder material dry shrinkage test method (T0854-2009) carry out drying shrinkage examination
It tests.Drying shrinkage strain is detailed in Fig. 3 in its 31d age.
In above-described embodiment 31d age, the cement stabilized macadam base material of cement dose 4.5%, 5.0%, 5.5%
The strain of 31d age drying shrinkage is as shown in table 1.
It is analyzed according to Fig. 1, Fig. 2, Fig. 3 and 1 data of table:
1) cement is compared in the magnetized water cement stabilized macadam base material 31d age of cement dose 4.5% final drying shrinkage strain
The drying shrinkage test specimen 31d age final drying shrinkage of the light water cement stabilized macadam base material of dosage 4.5% should reduce 58.8%；Water
The magnetized water cement stabilized macadam base material 31d age of mud dosage 5.0%, total drying shrinkage strain was than 5.0% light water of cement dose
Cement stabilized macadam base material 31d age, total drying shrinkage strain reduced 79.2%；The magnetized water cement stabilizing of cement dose 5.5%
Light water cement stabilized macadam base material 31d of the macadam base material 31d age final drying shrinkage strain than cement dose 5.5%
Age, final drying shrinkage should reduce 21.1%.
2) within 31d age, magnetized water cement stabilized macadam base material and light water cement stabilized macadam base material
Drying shrinkage strain variation rule it is similar, but the drying shrinkage of magnetized water cement stabilized macadam base material strain early period variation it is more flat
Surely, the duration quickly increased is shorter, and the age for reaching stable state more shifts to an earlier date.
The age that the strain of cement stabilized macadam base material drying shrinkage tends towards stability in above-described embodiment shortens, and can reduce cement
Curing time when stabilized macadam base material is constructed, accelerates construction progress, shortens the construction period；Drying shrinkage strains subtracting for final stationary value
It is small, the crack stress that cement stabilized macadam base acts on asphalt surface course due to cracking can be reduced, thus efficiently reduce by
The reflection crack of the asphalt surface course caused by cement stabilized macadam base material drying shrinkage.
The above, part case only of the invention do not make any restrictions to the present invention, all for the present invention
Any simple modification, alteration or imitation that technology contents do the above case study on implementation belongs to the protection of technical solution of the present invention
Content.
Claims (1)
1. the method for promoting cement stabilized macadam base material dry shrinkage resistance energy, it is characterised in that the following steps are included:
According to JTG D50-2006 " bituminous pavement design for highway specification ", JTG E42-2005 " highway engineering gather materials testing regulations "
Cement stabilized macadam base material match ratio is designed according to each shelves aggregate grading；
Then compaction test is carried out according to JTG E51-2009 " highway engineering stabilized with inorganic binder testing of materials regulation ", determined
The optimum moisture content of cement stabilized macadam base material special cement dosage；
The magnetized water, rubble and cement of optimum moisture content are mixed and stirred into obtained cement stabilized macadam base material；
Wherein, the magnetized water is prepared in the following manner:
It is sequentially placed according to the water (flow) direction that water mangetizer identifies in the rubber tube of caliber 20mm using 3 GMX800 type water mangetizers
Outer wall is divided into 25mm between each water mangetizer, controls light water with the flow velocity of 225mL/s by water mangetizer, magnetized water is made.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295808A (en) * | 2021-12-30 | 2022-04-08 | 长安大学 | Testing system and testing method for expansion deformation of water-stable gravel base |
| CN115340315A (en) * | 2022-08-03 | 2022-11-15 | 昆明晶活生物科技有限公司 | Water-based capillary crystalline waterproofing agent capable of being internally mixed and externally sprayed and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035616B1 (en) * | 2010-04-13 | 2011-05-19 | 주식회사 한영에버콘 | Waterproofing method using osmotic waterproof agent |
| CN107311496A (en) * | 2017-06-30 | 2017-11-03 | 武汉理工大学 | Application of the magnetized water in cement stabilized macadam |
-
2018
- 2018-08-01 CN CN201810864589.8A patent/CN108929073A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035616B1 (en) * | 2010-04-13 | 2011-05-19 | 주식회사 한영에버콘 | Waterproofing method using osmotic waterproof agent |
| CN107311496A (en) * | 2017-06-30 | 2017-11-03 | 武汉理工大学 | Application of the magnetized water in cement stabilized macadam |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295808A (en) * | 2021-12-30 | 2022-04-08 | 长安大学 | Testing system and testing method for expansion deformation of water-stable gravel base |
| CN115340315A (en) * | 2022-08-03 | 2022-11-15 | 昆明晶活生物科技有限公司 | Water-based capillary crystalline waterproofing agent capable of being internally mixed and externally sprayed and preparation method thereof |
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Application publication date: 20181204 |
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