CN101653967A - Crack resistance type cement stabilized macadam proportioning design method based on vibration test method - Google Patents
Crack resistance type cement stabilized macadam proportioning design method based on vibration test method Download PDFInfo
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Abstract
The invention discloses a crack resistance type cement stabilized macadam proportioning design method based on vibration test method. The design method is implemented according to the following steps:(1) preparing framework dense graded aggregate; (2) adding cement into graded aggregate to obtain a cement stabilized macadam mixture, and adopting vibration compaction test method to determine the maximal dry density and the optimal water content of the cement stabilized macadam mixture, wherein the added cement dosage accounts for 3-5% of the graded aggregate according to mass percent; (3) adopting the cement stabilized macadam mixture in step (2) and vibration compaction test method to prepare a cement stabilized macadam cylinder test piece with the dimension being 15cm in diameter * 15cmin height; (4) carrying out an unconfined compression strength test on the cement stabilized macadam cylinder test piece which is subject to 6 days of preserving and 1 day of water soaking, and designing the cement dosage according to the result of the unconfined compression strength test. The cement stabilized macadam designed by the invention can better form a compact framework structure, featuring unlikely dissociation, the maximal dry density, the optimal water content and saving of 30-40% cement use amount, has the advantages of high strength, good crack resistance and good scour resistance, and basically solves the problems of serious crack of cement stabilized macadam which perplexes road engineering circles, at home and abroad, all the time.
Description
Technical field
The present invention is applied to the Transportation and Civil Engineering field, relates to a kind of crack resistance type cement stabilized macadam mixing proportion design method based on the vibration test method.
Background technology:
The cement stabilized macadam match ratio has related generally to mineral mixture gradation, cement dosage, maximum dry density ρ
DmaxWith optimum moisture content w
oThe principle and the test procedure of cement stabilized macadam mixing proportion design method are as follows at present:
(1) the mineral mixture gradation scope of cement stabilized macadam meets the requirement of table 1.According to " highway engineering gather materials testing regulations " (JTJ058-2000) in fine aggregate sieve test method (T0327-2000) and coarse aggregate sieve test method (T0302-2000) determine the grating that each specification is gathered materials, the grating of gathering materials according to each specification and the mineral mixture gradation scope of table 1, each specification of determining to form the mineral compound ratio of gathering materials;
The mineral mixture gradation scope of table 1 cement stabilized macadam
(2) caementum is measured 3%, 3.5%, 4.0%, 4.5% and 5% and is mixed with the mineral compound respectively, adopts heavy compacting process in " highway engineering stabilized with inorganic binder testing of materials rules (JTJ057-94) " to determine the ρ of different caementum water gaging cement-stabilizing broken stones
DmaxAnd w
o
(3) hit the ρ that the solid yardage method is determined according to heavy type
DmaxAnd w
oAdopt static(al) compacting shaping test piece method making cylinder test specimen φ 15cm * h15cm in " highway engineering stabilized with inorganic binder testing of materials rules (JTJ057-94) ", wetly under 20 ℃ of conditions of 25 ℃, warm area and cold district in the hot-zone supported 6 days, immersion 1 day, carry out unconfined compression strength test and determine cement dosage.The cement dosage of determining is generally 3.5-5.5%.
Above-mentioned preparation method's characteristic analysis is as follows:
(1) mineral mixture gradation type is comparatively remarkable to the influence of cement stabilized macadam cracking resistance, wherein framework compact type grating cracking resistance optimum.Framework compact type grating 19mm percent of pass is bigger than normal in the table 1, and coarse aggregate is difficult to form strong skeleton structure; 4.75mm percent of pass is less than normal, fine aggregate is difficult to fill closely knit to the coarse aggregate space; 0.075mm percent of pass is on the low side, is difficult to the compound hole is filled, and produces segregation when making the construction of cement stabilized macadam compound easily.
(2) heavy compacting process is determined ρ
DmaxAnd w
oThere is following shortcoming:
1. hit the solid yardage method and lag behind production reality.Hit the solid yardage method and be based on that 12-15 ton static roller proposes, and production reality extensively adopts Frequency Adjustable amplitude modulated oscillations road roller more than 20 tons.
2. water content method of testing science not.The water content of oven drying method test can not reflect to hit in the real process because of particle draws close the part water that hydration reaction consumes in the part water extruded and the compound drying course, and this water content that makes test water content when mixing and stirring is little;
3. simulate effect poor, test poor reproducibility and operate miscellaneous.At first, modified compaction test divides three layers to carry out to the examination sample compacting, misfits in this and the actual field work progress; Secondly, layer-by-layer distribution and layering are hit real thickness, are hit real back plucking and handle and hit real back specimen surface leveling processing meeting is hit the actual effect fruit because of the difference of testing crew influences; At last, surveying the air-dry water content of gathering materials, sample from melting process divides three layers of pack into compaction cylinder and layering respectively to hit real 98 times, miscellaneous, the consuming time length of process operation of oven dry 8-12h measured moisture content.
(3) there is following shortcoming in the static(al) compacting method for preparing test specimen:
1. hit real mode and static(al) compacting preparation method is not complementary;
2. static(al) compacting legal system is equipped with the condition that test specimen does not meet actual vibration roller-compaction basic unit, and the base layer structure that the test specimen of preparation is formed structure and actual roller-compaction is not inconsistent;
3. the crushing coarse aggregates situation is comparatively serious in the test material preparation process, and the test specimen grating of preparation and basic unit's grating of actual roller-compaction are not inconsistent;
4. the water content damaed cordition is comparatively serious in the test material preparation process, and the test specimen water content of preparation and basic unit's water content of actual roller-compaction are not inconsistent;
5. crushing coarse aggregates causes that grating changes, the loss of water content causes that the inorganic binder actual dose reduces etc. in the test material preparation process, causes the physico-mechanical properties of test specimen and basic unit's physico-mechanical properties of actual moulding not to be inconsistent.
Summary of the invention:
The purpose of the present invention or invention is to overcome the shortcoming of above-mentioned prior art, and the crack resistance type cement stabilized macadam mixing proportion design method based on the vibration test method is provided, and this method is according to following steps:
(1) preparation framework compact type grating is gathered materials, and described framework compact type grating is gathered materials by the mineral compound of forming gathering materials of different-grain diameter specification; Particle diameter was 95-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 37.5mm during described framework compact type grating was gathered materials; Particle diameter was 90-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 31.5mm during described framework compact type grating was gathered materials; Particle diameter was 60-70% less than accounting for the quality percentage that grating gathers materials gathering materials of 19mm during described framework compact type grating was gathered materials; Particle diameter was 40-50% less than accounting for the quality percentage that grating gathers materials gathering materials of 9.5mm during described framework compact type grating was gathered materials; Particle diameter was 28-38% less than accounting for the quality percentage that grating gathers materials gathering materials of 4.75mm during described framework compact type grating was gathered materials; Particle diameter was 18-28% less than accounting for the quality percentage that grating gathers materials gathering materials of 2.36mm during described framework compact type grating was gathered materials; Particle diameter was 10-16% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.6mm during described framework compact type grating was gathered materials; Particle diameter was 2-6% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.075mm during described framework compact type grating was gathered materials;
(2) cement is added during grating gathers materials, obtain the cement stabilized macadam compound, adopt the simulation research on vibrating compaction test method to determine the maximum dry density and the optimum moisture content of cement stabilized macadam compound; Wherein the cement dosage of Jia Ruing accounts for the 3-5% of grating aggregate quality percentage;
(3) adopt cement stabilized macadam compound in the step (2), adopt the vibration moulding test method to prepare cement stabilized macadam cylinder test specimen, cement stabilized macadam cylinder sample dimensions is diameter 15cm * height 15cm;
(4) health 6 days, 1 day cement stabilized macadam cylinder test specimen of immersion are carried out unconfined compression strength test, according to unconfined compression strength test consequence devised cement dosage.
The simulation research on vibrating compaction test method is meant in the described step (2):
1. grating is gathered materials to put and dry in the baking oven to constant weight, temperature is 105 ± 5 ℃, and the time is 4-6 hour;
The grating of 2. getting after portion is dried is gathered materials, and the cement that adds corresponding cement dosage obtains compound; Water is added uniform mixing in the compound, w
1=4.0-4.5%, wherein w
1Mix water content (%) when testing for the first time;
3. above compound is packed in the middle of the die trial of diameter * highly=150mm * 150mm, and die trial is fixed on the vibration gauge, vibration compaction test 100 seconds-120 seconds, vibration gauge parameter configuration are vibration frequency 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;
5. with stripper with the complete release of the compound in the die trial, be test and use sample, the dry density of calculating sample
m
2 (i)Sample mass when being the i time test, V
(i)Volume of sample when being the i time test, i=1,2,3,4,5;
6. calculate vibration moulding front and back mixture quality difference m
1 (i)-m
2 (i), m wherein
1 (i)The i time test mixture quality in the middle of the die trial of the time packing into is worked as m
1 (i)-m
2 (i)＜50g, w
I+1=w
i+ 0.3%, work as m
1 (i)-m
2 (i)〉=50g, w
I+1=w
i-0.5%, w wherein
iBe add sample in the i time when test mix and stir water content (%), i=1,2,3,4,5.
7. according to step 2.-6. method repeat five tests, what obtain five groups of samples mixes and stirs water content and dry density; Draw dry density-water content relation curve, abscissa is for mixing and stirring water content, and ordinate is a dry density, and the pairing dry density of peak of curve is that maximum dry density, corresponding water content are optimum moisture content.
The vibration moulding test method is meant in the described step (3):
1. will test used grating and gather materials and place baking oven, oven temperature is 105 ℃, time 4-hour;
2. get a grating and gather materials, add the cement and the mix of corresponding cement dosage, obtain compound, in compound, add water, make the water content of compound reach the w that the vibration compaction test method is determined
o
3. the compound of blunge is packed in the middle of the die trial of diameter * highly=150mm * 150mm into the quality of charging=K ρ
DmaxV (1+w
o), K is the predetermined compactness (%) of test specimen, V is the volume (cm of test specimen
3), ρ
DmaxBe the definite compound maximum dry density (g/cm of vibration compaction test
3), w
oBe the definite compound optimum moisture content (%) of vibration compaction test.The die trial that compound is housed is fixed on the vibration gauge vibration compaction test 70-90 second.The vibration gauge parameter is set to 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;
4. die trial is taken off, carefully release compound in the die trial, promptly obtain the cylinder test specimen for preparing, wetly under 25 ℃ in the hot-zone, 20 ℃ of conditions of warm area and cold district supported 6 days, immersion 1 day with stripper.
Adopt the cement stabilized macadam of the present invention's design can form framework dense structure preferably and be difficult for segregation, maximum dry density is big, optimum moisture content is little, save characteristics such as cement consumption 30%-40%, and have advantages such as intensity height, cracking resistance and scour resistance are good, solved basically and perplexed the problem of domestic and international road engineering circle always about the cement stabilized macadam serious cracking.
Description of drawings:
Fig. 1 is for composition aggregate grading curve of the present invention and require the formate gradation composition curve map;
Fig. 2 is cement stabilized macadam compound dry density of the present invention-water content curve;
The specific embodiment:
Below in conjunction with accompanying drawing the present invention or invention are done and to be described in further detail:
Referring to Fig. 1,2, based on the crack resistance type cement stabilized macadam mixing proportion design method of vibration test method, this method is according to following steps:
(1) preparation framework compact type grating is gathered materials, and described framework compact type grating is gathered materials by the mineral compound of forming gathering materials of different-grain diameter specification; Particle diameter was 95-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 37.5mm during described framework compact type grating was gathered materials; Particle diameter was 95-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 31.5mm during described framework compact type grating was gathered materials; Particle diameter was 60-70% less than accounting for the quality percentage that grating gathers materials gathering materials of 19mm during described framework compact type grating was gathered materials; Particle diameter was 40-50% less than accounting for the quality percentage that grating gathers materials gathering materials of 9.5mm during described framework compact type grating was gathered materials; Particle diameter was 28-38% less than accounting for the quality percentage that grating gathers materials gathering materials of 4.75mm during described framework compact type grating was gathered materials; Particle diameter was 18-28% less than accounting for the quality percentage that grating gathers materials gathering materials of 2.36mm during described framework compact type grating was gathered materials; Particle diameter was 10-16% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.6mm during described framework compact type grating was gathered materials; Particle diameter was 2-6% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.075mm during described framework compact type grating was gathered materials;
(2) cement is added the framework compact type grating and obtain the cement stabilized macadam compound in gathering materials, adopt the simulation research on vibrating compaction test method to determine the maximum dry density and the optimum moisture content of cement stabilized macadam; Wherein the cement dosage of Jia Ruing accounts for the 3-5% of grating aggregate quality percentage;
(3) adopt acquisition cement stabilized macadam compound in the step (2), adopt the vibration moulding test method to prepare cement stabilized macadam cylinder test specimen, cement stabilized macadam cylinder sample dimensions is φ 15cm * h15cm, wherein φ is a cement stabilized macadam cylinder test specimen diameter, and h is a cement stabilized macadam cylinder test specimen height;
(4) health 6 days, 1 day cement stabilized macadam cylinder test specimen of immersion are carried out unconfined compression strength test, calculate cement dosage according to the unconfined compression strength test result.
The simulation research on vibrating compaction test method is meant in the described step (2):
1. grating is gathered materials to put and dry in the baking oven to constant weight, temperature is 105 ± 5 ℃, and the time is 4-6 hour;
The grating of 2. getting after portion is dried is gathered materials, and the cement that adds corresponding cement dosage obtains compound; Water is added uniform mixing in the compound, w
1=4.0-4.5%, wherein w
1Mix water content (%) when testing for the first time;
3. above compound is packed in the middle of the die trial of diameter * highly=150mm * 150mm, and die trial is fixed on the vibration gauge, vibration compaction test 100 seconds-120 seconds, vibration gauge parameter configuration are vibration frequency 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;
5. with stripper with the complete release of the compound in the die trial, be test and use sample, the dry density of calculating sample
m
2 (i)Sample mass when being the i time test, V
(i)Volume of sample when being the i time test, i=1,2,3,4,5;
6. calculate vibration moulding front and back mixture quality difference m
1 (i)-m
2 (i), m wherein
1 (i)The i time test mixture quality in the middle of the die trial of the time packing into is worked as m
1 (i)-m
2 (i)＜50g, w
I+1=w
i+ 0.3%, work as m
1 (i)-m
2 (i)〉=50g, w
I+1=w
i-0.5%, w wherein
iBe add sample in the i time when test mix and stir water content (%), i=1,2,3,4,5.
7. according to step 2.-6. method repeat five tests, what obtain five groups of samples mixes and stirs water content and dry density; Draw dry density-water content relation curve, abscissa is for mixing and stirring water content, and ordinate is a dry density, and the pairing dry density of peak of curve is that maximum dry density, corresponding water content are optimum moisture content.
The vibration moulding test method is meant in the described step (3):
1. will test used grating and gather materials and place baking oven, oven temperature is 105 ℃, time 4-6 hour;
2. get a grating and gather materials, add the cement and the mix of corresponding cement dosage, obtain compound, in compound, add water, make the water content of compound reach the w that the vibration compaction test method is determined
o
3. the compound of blunge is packed in the middle of the die trial of diameter * highly=150mm * 150mm into the quality of charging=K ρ
DmaxV (1+w
o), K is the predetermined compactness (%) of test specimen, V is the volume (cm of test specimen
3), ρ
DmaxBe the definite compound maximum dry density (g/cm of vibration compaction test
3), w
oBe the definite compound optimum moisture content (%) of vibration compaction test.The die trial that compound is housed is fixed on the vibration gauge vibration compaction test 70-90 second.The vibration gauge parameter is set to 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;
4. die trial is taken off, carefully release compound in the die trial, promptly obtain the cylinder test specimen for preparing, wetly under 25 ℃ in the hot-zone, 20 ℃ of conditions of warm area and cold district supported 6 days, immersion 1 day with stripper.
Specific practice is:
(1) each specification is gathered materials carries out sieve test, the results are shown in Table 3; Determine each specification ratio of gathering materials according to gather materials sieve test result and table 2 grading limit of table 3, see Table 3 and Fig. 1, be mixed into the mineral compound according to being called for short test portion in each specification ratio of gathering materials.By table 3 data as can be known, each specification ratio of gathering materials is 19-37.5mm: 9.5-19.0mm: 4.75-9.5mm: aggregate chips=40: 18: 12: 30.
Table 3 cement stabilized macadam underlayment grating design table
(2) the simulation research on vibrating compaction test method is determined the maximum dry density and the optimum moisture content of cement stabilized macadam:
1. be 19-37.5mm: 9.5-19.0mm: 4.75-9.5mm with ratio: aggregate chips=40: 18: 12: the used test portion of 30 test places baking oven, and oven temperature is 105 ℃, and the time is 5 hours.Take out 5 parts of test portions in the middle of the test portion of oven dry, every part of quality is 5000g.
2. get a test portion and be tiled in the metal dish, add cement dosage 4.0%, promptly cement consumption is 200g, and mix is even.The 1st when test, with the mix water content be 4.2% water be sprayed on the compound uniformly and mix even.
3. the uniform compound of blunge is packed in the middle of the die trial of diameter * highly=150mm * 150mm, before the charging, claim to such an extent that the die trial quality is 15231g.According to quartering compound is all packed in the middle of the die trial as far as possible, is weighed as 20641g, deduct the die trial quality, calculate actual charging quality m
1 (1)=5410g.The die trial that compound is housed is fixed on the vibration gauge, and vibration compaction test is 100 seconds, and the vibration gauge parameter is set to vibration frequency 30Hz, exciting force 7.6kN, nominal amplitude 1.4mm, service weight 3.0kN, last truck system 1.2kN, following truck system 1.8kN.
4. die trial is taken off, carefully release the compound test specimen with stripper, weighing obtains m
2 (1)=5384g.Height with the vernier caliper measurement test specimen is 11.98cm, gets the dry density of sample as calculated
5. the m of poor quality of compound before and after the vibration compaction test
1 (1)-m
2 (1)=26g, less than 50g, the amount of water w when therefore determining the 2nd test
2Be 4.5%.
6. according to 2. above-mentioned-5. test method repeat 5 times the test, the results are shown in Table 4.
Table 4 cement stabilized macadam simulation research on vibrating compaction test result
| Test sequence number i | ??1 | ??2 | ??3 | ??4 | ??5 |
| ??w i(％) | ??4.2 | ??4.5 | ??4.0 | ??4.3 | ??4.6 |
| ??ρ d(i)(g/cm 3) | ??2.441 | ??2.437 | ??2.432 | ??2.444 | ??2.432 |
7. being abscissa with the water content, is ordinate with the dry density, draws dry density-water content curve, sees Fig. 2.As shown in Figure 2, the pairing dry density 2.444g/cm of peak of curve
3For maximum dry density, corresponding water content 4.3% are optimum moisture content.
According to above-mentioned steps, determine that successively cement dosage is 3.0% and 3.5% cement stabilized macadam maximum dry density and optimum moisture content, see Table 5.
The different caementum water gaging of table 5 cement-stabilizing broken stone simulation research on vibrating compaction test result
| Cement dosage (%) | ??3.0 | ??3.5 | ??4.0 |
| ??w 0(％) | ??4.2 | ??4.2 | ??4.3 |
| ??ρ dmax(g/cm 3) | ??2.434 | ??2.438 | ??2.444 |
(3) vibration moulding test method shaping test piece
1. be 19-37.5mm: 9.5-19.0mm: 4.75-9.5mm with ratio: aggregate chips=40: 18: 12: the used test portion of 30 test places baking oven, and oven temperature is 105 ℃, 5 hours time.Take by weighing the test portion 6500g after the oven dry.
2. test portion is placed in the rectangle iron pan, adds cement dosage 4%, i.e. 260g cement, mix is even.Again to the water content that wherein adds 4.3%, i.e. 291g water, mix evenly obtains compound.
3. the uniform compound of blunge is packed in the die trial of diameter * highly=150mm * 150mm into the quality of charging=0.98 * 2.444 * (7.5 * 7.5 * π * 15)=6349g.The die trial that compound is housed is fixed on the vibration gauge vibration compaction test 80 seconds.The parameter of vibration gauge is set to vibration frequency 30Hz, exciting force 7.6kN, nominal amplitude 1.4mm, service weight 3.0kN, last truck system 1.2kN, following truck system 1.8kN.
4. die trial is taken off, carefully release compound in the die trial, be the cylinder test specimen of preparation, wetly under 25 ℃ in the hot-zone, 20 ℃ of conditions of warm area and cold district supported 6 days, immersion 1 day with stripper.
According to w in above-mentioned steps and the table 5
0And ρ
Dmax, prepare cement dosage successively and be the cylinder test specimen of 3.0% and 3.5% cement stabilized macadam preparation.Different caementum water gaging cement-stabilizing broken stone test specimens are no less than 6.
(4) carry out unconfined compressive strength to supporting 6 days, 1 day test specimen of immersion, result of the test sees Table 6.
The different caementum water gaging of table 6 cement-stabilizing broken stone strength test result
(5) as can be known, the cement stabilized macadam 7d unconfined compressive strength probability guarantee value R of cement dosage 3.0% according to table 6 strength test result
C0.95＞R
d=3.0MPa promptly satisfies R (1-Z
aC
V) 〉=R
dRequirement.Therefore, cement dosage design load is 3.0%.
(6) crack resistance type cement stabilized macadam match ratio design result sees Table 7.
Table 7 crack resistance type cement stabilized macadam match ratio design result
In the cement stabilized macadam compound, used grain size scope of gathering materials is bigger, and natural or artificial rolling a kind of general grain size scope of gathering materials is smaller, be difficult to satisfy the target grating area requirement of engineering to a certain compound, therefore gathering materials of two or more need be mixed and join use, be the mineral compound, be called for short mineral aggregate.The purpose that the mineral compound is formed design is exactly according to target grating area requirement, determines the various rational proportions that gather materials in the mineral compound.
Classification and the collocation of respectively forming particle in gathering materials are called grating, grating is determined by sieve test, sieve test according to " highway engineering gather materials testing regulations " (JTJ058-2000) in fine aggregate sieve test method (T0327-2000) and coarse aggregate sieve test method (T0302-2000) carry out, it is the standard screen of to gather materials by a series of regulation screen sizes, mensuration remains in the aggregate quality on each sieve, quality and the aggregate quality that remains on each sieve aperture according to the sample that gathers materials, just can try to achieve a series of parameters relevant, i.e. grader retained percentage with aggregate grading, accumulated retained percentage and pass through percentage.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (3)
- Based on the crack resistance type cement stabilized macadam mixing proportion design method of vibration test method, it is characterized in that 1, this method is according to following steps:(1) preparation framework compact type grating is gathered materials, and described framework compact type grating is gathered materials by the mineral compound of forming gathering materials of different-grain diameter specification; Particle diameter was 95-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 37.5mm during described framework compact type grating was gathered materials; Particle diameter was 90-100% less than accounting for the quality percentage that grating gathers materials gathering materials of 31.5mm during described framework compact type grating was gathered materials; Particle diameter was 60-70% less than accounting for the quality percentage that grating gathers materials gathering materials of 19mm during described framework compact type grating was gathered materials; Particle diameter was 40-50% less than accounting for the quality percentage that grating gathers materials gathering materials of 9.5mm during described framework compact type grating was gathered materials; Particle diameter was 28-38% less than accounting for the quality percentage that grating gathers materials gathering materials of 4.75mm during described framework compact type grating was gathered materials; Particle diameter was 18-28% less than accounting for the quality percentage that grating gathers materials gathering materials of 2.36mm during described framework compact type grating was gathered materials; Particle diameter was 10-16% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.6mm during described framework compact type grating was gathered materials; Particle diameter was 2-6% less than accounting for the quality percentage that grating gathers materials gathering materials of 0.075mm during described framework compact type grating was gathered materials;(2) cement is added during the framework compact type grating gathers materials, obtain the cement stabilized macadam compound, adopt the simulation research on vibrating compaction test method to determine the maximum dry density and the optimum moisture content of cement stabilized macadam compound; Wherein the cement dosage of Jia Ruing accounts for the 3-5% of framework compact type grating aggregate quality percentage;(3) adopt cement stabilized macadam compound in the step (2), adopt the vibration moulding test method to prepare cement stabilized macadam cylinder test specimen, cement stabilized macadam cylinder sample dimensions is diameter 15cm * height 15cm;(4) health 6 days, 1 day cement stabilized macadam cylinder test specimen of immersion are carried out unconfined compression strength test, according to unconfined compression strength test consequence devised cement dosage.
- According to claim 1 based on the crack resistance type cement stabilized macadam mixing proportion design method of vibration test method, it is characterized in that 2, the simulation research on vibrating compaction test method is meant in the described step (2):1. grating is gathered materials to put and dry in the baking oven to constant weight, temperature is 105 ± 5 ℃, and the time is 4-6 hour;The grating of 2. getting after portion is dried is gathered materials, and the cement that adds corresponding cement dosage obtains compound; Water is added uniform mixing in the compound, w 1=4.0-4.5%, wherein w 1Mix water content (%) when testing for the first time;3. above compound is packed in the middle of the die trial of diameter * highly=150mm * 150mm, and die trial is fixed on the vibration gauge, vibration compaction test 100 seconds-120 seconds, vibration gauge parameter configuration are vibration frequency 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;5. with stripper with the complete release of the compound in the die trial, be test and use sample, the dry density of calculating sample
- According to claim 1 based on the crack resistance type cement stabilized macadam mixing proportion design method of vibration test method, it is characterized in that 3, the vibration moulding test method is meant in the described step (3):1. will test used grating and gather materials and place baking oven, oven temperature is 105 ℃, time 4-6 hour;2. get a grating and gather materials, add the cement and the mix of corresponding cement dosage, obtain compound, in compound, add water, make the water content of compound reach the w that the vibration compaction test method is determined o3. the compound of blunge is packed in the middle of the die trial of diameter * highly=150mm * 150mm into the quality of charging=K ρ DmaxV (1+w o), K is the predetermined compactness (%) of test specimen, V is the volume (cm of test specimen 3), ρ DmaxBe the definite compound maximum dry density (g/cm of vibration compaction test 3), w oBe the definite compound optimum moisture content (%) of vibration compaction test.The die trial that compound is housed is fixed on the vibration gauge vibration compaction test 70-90 second.The vibration gauge parameter is set to 30 ± 2Hz, exciting force 7.6 ± 0.2kN, nominal amplitude 1.4 ± 0.2mm, service weight 3.0 ± 0.4kN, last truck system 1.2 ± 0.2kN, following truck system 1.8 ± 0.2kN;4. die trial is taken off, carefully release compound in the die trial, promptly obtain the cylinder test specimen for preparing, wetly under 25 ℃ in the hot-zone, 20 ℃ of conditions of warm area and cold district supported 6 days, immersion 1 day with stripper.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910023939A CN101653967A (en) | 2009-09-17 | 2009-09-17 | Crack resistance type cement stabilized macadam proportioning design method based on vibration test method |
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| CN102507371A (en) * | 2011-11-02 | 2012-06-20 | 三明学院 | Testing instrument for tap density of material |
| CN102914633A (en) * | 2012-10-16 | 2013-02-06 | 重庆大学 | Method for determining optimum water content for soil compaction |
| CN103344750A (en) * | 2013-07-08 | 2013-10-09 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103590295A (en) * | 2013-11-29 | 2014-02-19 | 长沙理工大学 | Low-dose cement-modified graded broken stone pavement base material and preparation method thereof |
| CN103708787A (en) * | 2013-12-27 | 2014-04-09 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Cement stabilized macadam for base course of highway pavement |
| CN104965065A (en) * | 2015-06-23 | 2015-10-07 | 同济大学 | Method for detecting gradation change of base-layer recycled materials on basis of static-pressure molding tests |
| CN105294005A (en) * | 2014-11-18 | 2016-02-03 | 蒋新明 | Mix proportion design method for improving bending tensile strength of road-used cement concrete |
| CN105399379A (en) * | 2015-12-08 | 2016-03-16 | 苏交科集团股份有限公司 | Double-mixing additive combined anti-crack type grading cement stabilized macadam base course and preparation method |
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| CN106431145A (en) * | 2016-10-08 | 2017-02-22 | 山东省交通科学研究院 | Cement-stabilized-macadam mixture design method |
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| CN106908349A (en) * | 2017-01-23 | 2017-06-30 | 中国水利水电科学研究院 | It is determined that the simple method with sandy gravel maximum dry density of building a dam |
| CN107101857A (en) * | 2017-05-08 | 2017-08-29 | 长安大学 | Simulate the preparation method of the soil-stone embankment soil mechanics test specimen of on-site rolling effect |
| CN107219151A (en) * | 2017-05-08 | 2017-09-29 | 长安大学 | A kind of test method for determining roadbed soil-stone material maximum dry density |
| CN107777967A (en) * | 2017-11-21 | 2018-03-09 | 天津市交通科学研究院 | A kind of crack resistance type rubber powder Cement Stable Macadam Mixture and preparation method thereof |
| CN107857500A (en) * | 2017-11-07 | 2018-03-30 | 江苏东交工程检测股份有限公司 | One kind exempts from the shake steady additive of pressure water and its preparation and application |
| CN108149553A (en) * | 2018-01-08 | 2018-06-12 | 中交三公局第工程有限公司 | Cement stabilizing crushed-gravel layer and its construction method |
| CN108593391A (en) * | 2018-07-23 | 2018-09-28 | 四川正达检测技术有限责任公司 | A kind of forming method of the engineering geotechnique carrying than test specimen |
| CN108656342A (en) * | 2018-05-25 | 2018-10-16 | 山东省交通科学研究院 | A kind of Cement Stable Macadam Mixture processing method |
| CN109024197A (en) * | 2018-09-10 | 2018-12-18 | 山东铁正工程试验检测中心有限公司 | The method of disposable design compact-type water stability detritus underlayment, Basic Mixture Proportion |
| CN109095851A (en) * | 2018-08-28 | 2018-12-28 | 闵剑峰 | It is a kind of to be used for sub-surface and preparation method using power plant's solid waste clinker as additive |
| CN109624071A (en) * | 2018-12-07 | 2019-04-16 | 中国建筑土木建设有限公司 | A kind of obvious method for reducing vibration paddling process and preparing the aggregate unevenness of cement stabilized macadam unconfined compressive strength mixture |
| CN109632413A (en) * | 2018-12-07 | 2019-04-16 | 中国建筑土木建设有限公司 | A kind of test mixing method improving cement stabilized macadam unconfined compressive strength |
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| CN102507371A (en) * | 2011-11-02 | 2012-06-20 | 三明学院 | Testing instrument for tap density of material |
| CN102914633A (en) * | 2012-10-16 | 2013-02-06 | 重庆大学 | Method for determining optimum water content for soil compaction |
| CN103344750A (en) * | 2013-07-08 | 2013-10-09 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103344750B (en) * | 2013-07-08 | 2015-02-18 | 清华大学 | Method for determining road roller compacted concrete composition based on pressing vibration method |
| CN103590295A (en) * | 2013-11-29 | 2014-02-19 | 长沙理工大学 | Low-dose cement-modified graded broken stone pavement base material and preparation method thereof |
| CN103590295B (en) * | 2013-11-29 | 2016-05-18 | 长沙理工大学 | Low dosage modified cement graded broken stone road surface base layer material and preparation method thereof |
| CN103708787A (en) * | 2013-12-27 | 2014-04-09 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Cement stabilized macadam for base course of highway pavement |
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| CN105294005A (en) * | 2014-11-18 | 2016-02-03 | 蒋新明 | Mix proportion design method for improving bending tensile strength of road-used cement concrete |
| CN104965065B (en) * | 2015-06-23 | 2016-06-15 | 同济大学 | A kind of basic unit's reclaimed materials gradation differentials detection method based on hydrostatic profile test |
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| CN105399379A (en) * | 2015-12-08 | 2016-03-16 | 苏交科集团股份有限公司 | Double-mixing additive combined anti-crack type grading cement stabilized macadam base course and preparation method |
| CN106447541A (en) * | 2016-09-27 | 2017-02-22 | 中石化石油工程技术服务有限公司 | Theoretical calculation method for water content of mixed material of cement stabilized macadam road pavement |
| CN106431145A (en) * | 2016-10-08 | 2017-02-22 | 山东省交通科学研究院 | Cement-stabilized-macadam mixture design method |
| CN106498898A (en) * | 2016-11-22 | 2017-03-15 | 河海大学 | A kind of earth and stone material Gradation Optimization method based on fractal theory and physical mechanics test |
| CN106498898B (en) * | 2016-11-22 | 2019-03-05 | 河海大学 | A kind of earth and stone material Gradation Optimization method based on fractal theory and physical mechanics test |
| CN106738205A (en) * | 2016-12-23 | 2017-05-31 | 长安大学 | A kind of cement stabilizing crushing gravel mixing proportion design method based on vibration test |
| CN106908349A (en) * | 2017-01-23 | 2017-06-30 | 中国水利水电科学研究院 | It is determined that the simple method with sandy gravel maximum dry density of building a dam |
| CN106908349B (en) * | 2017-01-23 | 2020-05-05 | 中国水利水电科学研究院 | Method for determining maximum dry density of dam primary sand gravel distribution material |
| CN107219151A (en) * | 2017-05-08 | 2017-09-29 | 长安大学 | A kind of test method for determining roadbed soil-stone material maximum dry density |
| CN107101857A (en) * | 2017-05-08 | 2017-08-29 | 长安大学 | Simulate the preparation method of the soil-stone embankment soil mechanics test specimen of on-site rolling effect |
| CN107857500A (en) * | 2017-11-07 | 2018-03-30 | 江苏东交工程检测股份有限公司 | One kind exempts from the shake steady additive of pressure water and its preparation and application |
| CN107777967A (en) * | 2017-11-21 | 2018-03-09 | 天津市交通科学研究院 | A kind of crack resistance type rubber powder Cement Stable Macadam Mixture and preparation method thereof |
| CN108149553A (en) * | 2018-01-08 | 2018-06-12 | 中交三公局第工程有限公司 | Cement stabilizing crushed-gravel layer and its construction method |
| CN108656342A (en) * | 2018-05-25 | 2018-10-16 | 山东省交通科学研究院 | A kind of Cement Stable Macadam Mixture processing method |
| CN108593391A (en) * | 2018-07-23 | 2018-09-28 | 四川正达检测技术有限责任公司 | A kind of forming method of the engineering geotechnique carrying than test specimen |
| CN109095851A (en) * | 2018-08-28 | 2018-12-28 | 闵剑峰 | It is a kind of to be used for sub-surface and preparation method using power plant's solid waste clinker as additive |
| CN109024197A (en) * | 2018-09-10 | 2018-12-18 | 山东铁正工程试验检测中心有限公司 | The method of disposable design compact-type water stability detritus underlayment, Basic Mixture Proportion |
| CN109632413A (en) * | 2018-12-07 | 2019-04-16 | 中国建筑土木建设有限公司 | A kind of test mixing method improving cement stabilized macadam unconfined compressive strength |
| CN109624071A (en) * | 2018-12-07 | 2019-04-16 | 中国建筑土木建设有限公司 | A kind of obvious method for reducing vibration paddling process and preparing the aggregate unevenness of cement stabilized macadam unconfined compressive strength mixture |
| CN111397991A (en) * | 2020-05-13 | 2020-07-10 | 长安大学 | Vibration compaction method for measuring maximum dry density and optimum water content of roadbed filler |
| CN112326943A (en) * | 2020-10-30 | 2021-02-05 | 山东洁诺环境科技有限公司 | Mix proportion design method of cement stable regeneration aggregate subbase |
| CN112945810A (en) * | 2021-02-05 | 2021-06-11 | 中北大学 | Construction waste regeneration mixed aggregate gradation determination method |
| CN112945810B (en) * | 2021-02-05 | 2023-10-10 | 中北大学 | Construction waste regeneration mixed aggregate grading determination method |
| CN114383907A (en) * | 2021-12-27 | 2022-04-22 | 东南大学 | Test method for evaluating cement stabilized macadam skeleton structure |
| CN114383907B (en) * | 2021-12-27 | 2024-01-30 | 东南大学 | Test method for evaluating framework structure of cement stabilized macadam |
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