CN105753385A - Vibrating-free pressurized water stable layer and construction method - Google Patents
Vibrating-free pressurized water stable layer and construction method Download PDFInfo
- Publication number
- CN105753385A CN105753385A CN201610072764.0A CN201610072764A CN105753385A CN 105753385 A CN105753385 A CN 105753385A CN 201610072764 A CN201610072764 A CN 201610072764A CN 105753385 A CN105753385 A CN 105753385A
- Authority
- CN
- China
- Prior art keywords
- graded broken
- percent
- broken stone
- sieve
- pass
- 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.)
- Pending
Links
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a vibrating-free pressurized water stable layer and a construction method. The vibrating-free pressurized water stable layer comprises graded broken stones, cementing materials and water, wherein the graded broken stones consist of fine aggregates and coarse aggregates; the particle sizes of the fine aggregate are smaller than 4.75mm; the particle sizes of the coarse aggregates are greater than or equal to 4.75mm; the cementing materials comprise cement; in the vibrating-free pressurized water stable layer, the weight percentage of the cement is 6 to 9 percent, the weight percentage of water is 4 to 10 percent, and the weight percentage of the graded broken stones is 81 to 90 percent, wherein the fine aggregates account for 35 to 45 weight percent of the graded broken stones, and the coarse aggregates account for 55 to 65 weight percent of the graded broken stones. According to the vibrating-free pressurized water stable layer provided by the invention, the influence of vibration of construction equipment on surrounding buildings is avoided while the compacted molding quality of the water stable layer can be guaranteed.
Description
Technical field
The present invention relates to the technical field of transportation, particularly relate to one exempt to shake the steady layer of setting-out and
Construction method.
Background technology
The steady layer of water is the abbreviation of cement stabilized macadam layer, is to make aggregate (also known as collection with graded broken stone
Material), use the space of a certain amount of ash volume of slurry (including water and Binder Materials) filler aggregate,
Pave compacting by embedded squeezing principle.Its compactness is close to degree of compaction, between intensity is mainly by rubble
Embedded squeezing lock knot principle, has enough grey volume of slurry to come the space of filler aggregate simultaneously.Its initial stage
Intensity is high, and intensity increases with age and quickly forms plate body, thus has higher intensity,
Impervious degree and frost resistance are preferable.Cement stabilized macadam layer (i.e. the steady layer of water) is a kind of base on road surface
Layer material.
But, the steady layer of water also has its limitation.Along with sending out of transportation and construction cause
Exhibition, the high-power machinery power-equipment of vibration tool and generation judder is on the increase, and brings
Hazard of vibration also become increasingly conspicuous.In the work progress of the steady layer of water, produce because of mechanical vibration
Harm, be the primary limitation place of cement stabilized macadam layer.
State of China province arterial highway is more through the section in villages and small towns, especially in economically less developed region,
The section of passing by both sides of highway house, villages and small towns is based on tile-roofed house, and the ability of anti-vibration is relatively poor, because of
This, the mechanical vibration produced in the work progress of the steady layer of water usually can be to the structural safety in house
Produce and threaten.Therefore, how to develop one and exempt from the shake steady layer of setting-out and construction method thereof, become this
Field problem demanding prompt solution.
The information being disclosed in this background section is merely intended to deepen the general background to the present invention
The understanding of technology, and be not construed as recognizing or implying this information structure in any form
Prior art known to those skilled in the art.
Summary of the invention
In order to solve technical problem mentioned above, the present invention provides one to exempt from the steady layer of setting-out that shakes,
Including: graded broken stone, Binder Materials and water, it is characterised in that described graded broken stone is by carefully collecting
Material and coarse aggregate form, and the particle diameter of described fine aggregate is less than 4.75mm, the particle diameter of described coarse aggregate
More than or equal to 4.75mm；Described Binder Materials includes cement；Exempt to shake in the steady layer of setting-out described,
The percentage by weight of described cement is 6-9%, and the percentage by weight of described water is 4-10%, described
The percentage by weight of graded broken stone is 81-90%；Wherein, described fine aggregate is at described graded broken stone
Percentage by weight shared by is 35-45%, and described coarse aggregate is shared weight in described graded broken stone
Percentage ratio is 55-65%.
Preferably, the percentage by weight of described cement is 7.5-8%.
Preferably, the steady layer of setting-out of exempting to shake described in is used as ground subsoil layer, wherein:
Being the sieve of 26.5mm for screen size, the percent of pass of described graded broken stone is 100%；
Being the sieve of 19mm for screen size, the percent of pass of described graded broken stone is 82-89%；
Being the sieve of 16mm for screen size, the percent of pass of described graded broken stone is 73-84%；
Being the sieve of 13.2mm for screen size, the percent of pass of described graded broken stone is 65-78%；
Being the sieve of 9.5mm for screen size, the percent of pass of described graded broken stone is 53-67%；
Being the sieve of 4.75mm for screen size, the percent of pass of described graded broken stone is 35-45%；
Being the sieve of 2.36mm for screen size, the percent of pass of described graded broken stone is 19-31%；
Being the sieve of 1.18mm for screen size, the percent of pass of described graded broken stone is 11-22%；
Being the sieve of 0.6mm for screen size, the percent of pass of described graded broken stone is 6-15%；
Being the sieve of 0.3mm for screen size, the percent of pass of described graded broken stone is 3-10%；
Being the sieve of 0.15mm for screen size, the percent of pass of described graded broken stone is 2-7%；
Being the sieve of 0.075mm for screen size, the percent of pass of described graded broken stone is 2-5%.
Preferably, the steady layer of setting-out of exempting to shake described in is used as sub-surface, wherein:
Being the sieve of 26.5mm for screen size, the percent of pass of described graded broken stone is 90-100%；
Being the sieve of 19mm for screen size, the percent of pass of described graded broken stone is 75-86%；
Being the sieve of 16mm for screen size, the percent of pass of described graded broken stone is 68-79%；
Being the sieve of 13.2mm for screen size, the percent of pass of described graded broken stone is 61-72%；
Being the sieve of 9.5mm for screen size, the percent of pass of described graded broken stone is 51-62%；
Being the sieve of 4.75mm for screen size, the percent of pass of described graded broken stone is 35-45%；
Being the sieve of 2.36mm for screen size, the percent of pass of described graded broken stone is 19-31%；
Being the sieve of 1.18mm for screen size, the percent of pass of described graded broken stone is 11-22%；
Being the sieve of 0.6mm for screen size, the percent of pass of described graded broken stone is 6-15%；
Being the sieve of 0.3mm for screen size, the percent of pass of described graded broken stone is 3-10%；
Being the sieve of 0.15mm for screen size, the percent of pass of described graded broken stone is 2-7%；
Being the sieve of 0.075mm for screen size, the percent of pass of described graded broken stone is 2-5%.
On the other hand, the present invention provides the construction method of a kind of steady layer of setting-out of exempting to shake, described construction
Method comprises the following steps: preparation of construction, prepares construction raw material and construction apparatus；Raw material
Inspection, tests to raw material；Mix and stir, use the length cylinder of mixing more than 5m to mix and stir,
Mixing time is more than 20s, and mixing water amount is more than optimum moisture content 0.5-1%；Comprcssive strength and containing
The water yield detects, if comprcssive strength is defective or water content is defective, then returns and mixes and stirs step；
Compound transports, and transports compound qualified for detection to job location；Pave, utilize two
Paver paves, paver walking speed 1-2m/min, two pavers 5-8m apart,
Overlap joint 10-20cm；Pre-hammer ram frequency of vibration 40Hz, more than amplitude 20mm；Screed vibrates
Frequency is less than 6Hz, and amplitude is more than 8mm；In spiral distributor, controlling level is maximum height
3/4 or equal to maximum height；Paver both sides and outside arrange rubber apron, prevent coarse aggregate and
/ or fine aggregate vertically isolate；First pressing, is carried out first pressing by pneumatic-tired rollers immediately following paver；Multiple pressure,
Multiple pressure is carried out by single-drum road roller；Final pressure, is carried out final pressure by dual-steel wheel road roller, eliminates wheel
Pelmatogram also carries out defect processing；And health preserving and joint-cutting, carry out according to existing construction technique normalizing
Health preserving, and cut pre-cutting crack, pre-cutting crack spacing is 8-15m, and the degree of depth is total for the steady layer of setting-out of exempting to shake
The 1/3 of thickness, width is 3-5mm.
According to the present invention, by reducing content of coarse aggregate, increase fine aggregate content, properly increase
The method of cement consumption, by optimization design and the construction technology of cement stabilized grading crushed stones grating
Innovation, it is possible to ensureing while the water closely knit Forming Quality of steady layer, it is to avoid shaking of construction equipment
The dynamic impact on building construction around.
By accompanying drawing and detailed description of the invention subsequently, the further feature that the present invention is had and
Advantage will become clearer from.
Accompanying drawing explanation
Fig. 1 is the flow chart of construction method of the steady layer of setting-out of exempting to shake according to embodiments of the present invention.
Fig. 2 is that cement stabilized macadam test grade according to embodiments of the present invention is write music for a song line chart.
Fig. 3 is 6% cement dose cement stabilized macadam lower limit grating tamping curve figure.
Fig. 4 is limit grating tamping curve figure in 6% cement dose cement stabilized macadam.
Fig. 5 is 6% cement dose cement stabilized macadam upper limit grating tamping curve figure.
Fig. 6 is limit grating tamping curve figure in 7% cement dose cement stabilized macadam.
It should be understood that accompanying drawing presents the certain of each feature of explanation its general principles
The simplification of degree represents, thus be not necessarily drawn to scale.In the accompanying drawings, identical attached
Figure labelling represents the identical or equivalent part of the present invention.
Detailed description of the invention
Reference will be made in detail now each embodiment of the present invention, the example of these embodiments
It is shown in the accompanying drawings and is described as follows.Although the present invention will combine with exemplary
It is described, it will be appreciated that this specification is not intended to limit the invention to those
Exemplary.On the contrary, it is contemplated that not only cover these exemplary,
And cover and can be included in the spirit and scope of the present invention being defined by the appended claims
Within various selection forms, modification, equivalents and other embodiment.
It should be appreciated by those skilled in the art that unless otherwise indicated, present document relates to particle diameter, sieve aperture
Square hole screen is all referred to etc. concept.
The exempting from of the present invention steady layer of setting-out that shakes includes graded broken stone, Binder Materials and water.
Wherein, graded broken stone is 81-90% at the percentage by weight in the steady layer of setting-out of exempting to shake.Grating
Rubble is made up of fine aggregate and coarse aggregate.The particle diameter of fine aggregate is less than 4.75mm, the grain of coarse aggregate
Footpath is more than or equal to 4.75mm.Fine aggregate shared percentage by weight in graded broken stone is
35-45%, coarse aggregate shared percentage by weight in graded broken stone is 55-65%.
Binder Materials includes cement.Cement is 6-9% at the percentage by weight in the steady layer of setting-out of exempting to shake.
Water is 4-10% at the percentage by weight in the steady layer of setting-out of exempting to shake.
Regulation in " highway road surface construction technique normalizing " (JTJ034-2004) at present: water
When during mud is stable, grain soil and coarse-grained soil are used as basic unit, cement dose is no more than 6%.And the present invention
Propose exempt to shake in the steady layer of setting-out increases cement dose, and cement dose is brought up to 6-9%.Examine
Considering the inhomogeneities to construction, Practical Project is mixed the cement dose joined and is preferably 7.5-8%.
Generally, for different building stones proportioning, different rock types, different cement,
The cement dose used is the most different.According to a particular embodiment of the invention, the cement dose energy of 6%
Enough meet the demand in terms of water steady layer intensity.The steady layer of water is caused to go out it addition, cement dose crosses conference
Existing crack, according to a particular embodiment of the invention, the cement dose of 9% disclosure satisfy that avoids water steady
Demand in terms of slabbing seam.
According to embodiments of the invention, fine aggregate shared percentage by weight in graded broken stone is
35-45%.According to the example being listed herein below and specific embodiment, the fine aggregate of 35% and 45%
Proportion disclosure satisfy that the technical need in terms of optimum moisture content and maximum dry density.
According to embodiments of the invention, the proportion of water is 4-10%, and this is according to " highway engineering
Stabilized with inorganic binder testing of materials code " (JTG E51-2009) determine.
According to " highway road surface construction technique normalizing " (JTJ034-2004), to term " base
Layer " and " underlayment " be explained as follows.
Basic unit, be located immediately under asphalt surface course, with the main supporting course of high-quality material making or
It is located immediately under cement concrete slab, is referred to as basic unit with one layer of high-quality material making.Base
Layer can be one layer or two-layer, can be one or both materials.
Underlayment, under Asphalt Pavement Base, with the secondary supporting course of quality more secondary material making
Or under cement concrete pavement basic unit, be referred to as base with the auxiliary layer of quality more secondary material making
Layer.Underlayment can be more than one layer or two-layer, can be one or both materials.
Regulation in " highway road surface construction technique normalizing " (JTJ034-2004): cement is steady
Determining soil when being used as underlayment, the maximum particle diameter of individual particle is not to be exceeded 53mm, cement stabilized soil
Granule composition should be in the range of table 0 be listed, the coefficient of uniformity of soil should be greater than 5；Cement stabilized soil
When being used as basic unit, the maximum particle diameter of individual particle is not to be exceeded 37.5mm.Cement stabilized soil
Grain composition should be in the range of table 0.
The granule compositing range of cement stabilized soil when table 0 is used as basic unit and underlayment
| Sieve aperture (mm) | Underlayment (%) | Basic unit (%) |
| 53 | - | 100 |
| 37.5 | 90-100 | - |
| 26.5 | 66-100 | - |
| 19 | 54-100 | - |
| 9.5 | 39-100 | - |
| 4.75 | 28-84 | 50-100 |
| 2.36 | 20-70 | - |
| 1.18 | 14-57 | - |
| 0.6 | 8-47 | 17-100 |
| 0.075 | 0-30 | 0-50 |
The steady layer of setting-out that shakes of exempting from according to embodiments of the present invention can be used as basic unit and underlayment, its reference
Mineral aggregate gradation scope is shown in Table 1.The present invention is by " highway road surface construction technique normalizing "
(JTJ034-2004) given grading limit reduces, and is also the optimization to existing mineral aggregate gradation,
Use appropriateness to increase the content of coarse aggregate, reduce fine aggregate content, the method increasing cement dose
Form skeleton-pore structure cement stabilized macadam base, thus there is preferable shrinkage, reach
The effect of water steady layer design strength is i.e. can reach to static pressure (exempting from pressure of shaking).
Table 1 exempts to shake the steady layer of setting-out with reference to mineral aggregate gradation scope
| Sieve aperture (mm) | Underlayment (%) | Basic unit (%) |
| 26.5 | 100 | 100-90 |
| 19 | 89-82 | 86-75 |
| 16 | 84-73 | 79-68 |
| 13.2 | 78-65 | 72-61 |
| 9.5 | 67-53 | 62-51 |
| 4.75 | 45-35 | 45-35 |
| 2.36 | 31-19 | 31-19 |
| 1.18 | 22-11 | 22-11 |
| 0.6 | 15-6 | 15-6 |
| 0.3 | 10-3 | 10-3 |
| 0.15 | 7-2 | 7-2 |
| 0.075 | 5-2 | 5-2 |
According to embodiments of the present invention exempt from the steady layer of setting-out that shakes, fine aggregate accounts for graded broken stone proportion and is
35-45%, it is 55-65% that coarse aggregate accounts for graded broken stone proportion.Coarse aggregate and the separation of fine aggregate
For 4.75mm.Table 1 is for each shelves that gather materials by percentage rate, and unit is %.Referred to by percentage rate
The percentage rate of sample gross mass, i.e. 100 and the accumulative sieve of certain number sieve is accounted for by the quality of certain number sieve
Remaining difference.
According to embodiments of the invention, heavy compaction number of times uses 3 layers, every layer 50 times.Resistance to compression
Intensity test piece uses the 96% of body density to get the raw materials ready.Other mix-design parameters are with existing examination
Test code.
The construction method bag of the steady layer of setting-out as it is shown in figure 1, exempt from according to an embodiment of the invention to shake
Including preparation of construction, the inspection of raw and process materials, mix and stir, comprcssive strength and water content detection, compound is transported
Defeated, pave, first pressing, multiple pressure, final pressure, and the step such as health preserving and joint-cutting.
After preparing construction raw material and construction apparatus, raw material is tested, then enters
Row mixes and stirs, and mixes cylinder length and be more than 20s more than 5m, mixing time when mixing and stirring.Actual mixing water
Amount is more than optimum moisture content 0.5-1%.
Then comprcssive strength and water content detection are carried out, if comprcssive strength is defective or aqueous
Measure defective, then return and mix and stir step.
Transporting, pave with existing construction technique normalizing requirement, technical characteristic is as follows:
(1) pave: paver walking speed 1-2m/min；Two pavers 5-8m apart,
Overlap joint 10-20cm, frequency of vibrating and amplitude keep consistent after test section is verified and lock, and do not permit
Permitted arbitrarily to adjust.It is optimal for typically not producing resonance with depressed broken compound rubble and paver.
Pre-hammer ram frequency of vibration about 40Hz, more than amplitude 20mm；Screed frequency of vibration is less than
6Hz, amplitude is more than 8mm.Controlling level 3/4 in spiral distributor, or completely bury.Forbid to construct
During receive bucket, every construction operation sky allow receive bucket 1 time.Rubber is set up in paver both sides and outside
Glue apron, prevents the vertical isolation that gathers materials.
(2) roll: each scope of operation at least 5 road rollers of outfit, 2 weight rubber tires, 2
Single steel wheel, 1 double steel wheel.
1. first pressing: ground immediately following paver by 2 heavy pneumatic-tired rollers (more than 26 tons)
Pressure, number of rolling be every 3 times, totally 6 times.Immediately following paver during first pressing, and keep shorter
First nip length, make superficial compaction as early as possible, prevent moisture loss.
Pressure the most again: hung high frequency shelves short arc by 2 single steel wheels (18 tons) and roll, number of rolling
For every 1 time, totally 2 times.Multiple compression is carried out with first pressing, a length of 40 meters of the section of rolling, often
Platform road roller is intended to full width and rolls, and prevents breadth compactness uneven.This procedure, main mesh
Be eliminate rubber tire roll the relatively deep surface wheelmark caused, when wheelmark is inconspicuous, static pressure can be used
Or save this procedure.
3. final pressure: eliminated wheel pelmatogram matching defect process group to mixed by 1 dual-steel wheel road roller
Close the material excessive phenomenon of segregation phenomenon, locally moisture and carry out defect processing.
When weight rubber tire first pressing wheelmark is deeper, use double steel wheel first pressing 1-2 time.
(3) health preserving and joint-cutting
Health preserving requires with existing construction technique normalizing.
When upper base layer construction 3-5 days, pre-cutting crack of constructing, spacing was generally 8-15m, and the degree of depth is
Exempting from about the 1/3 of setting-out steady layer gross thickness of shaking, width is 3-5mm.
(4) about pavement structure and interlayer management measure
The steady underlayment of water and groundwork thickness are generally 56-60cm, when crossing section, street repairing work, receive
To section and the requirement of transit time, 2 layers or during multilamellar making, can direct making after having rolled
On hold layer, save underlayment and the conditioned time gone to a grassroots level.But interlayer can be sprinkled water cement paste or
Dry cement powder connects measure as interlayer.
The connection measure of cement treated material dough-making powder interlayer can use heat spilling property bitumen macadam seal coat, heat
Pitch sprinkling amount is at 1.5kg/m2Above, rubble spread particle diameter is 11-22 or 11-18mm simple grain
Footpath rubble.
(5) other: water based on 3 layers of 150 striking times steady layer material performance verification.
Specifically test and the example that explanation below the present embodiments relate to.
Test as the cement stabilized macadam of example and be extracted each shelves building stones of certain material factory respectively and carry out
Test mixture.Cement uses normal silicate 425# cement.
1, grating is mixed and is joined
When this is tested, the raw material in stock ground is carried out respectively regrading, more respectively by setting
Meter grating obtains upper, middle and lower limit and is designed mixing and joins.The percent of pass of upper limit 4.75mm is 45%；
The percent of pass of middle limit 4.75mm is 40%；The percent of pass of lower limit 4.75mm is 35%.Table 1-1
Grading limit is designed for Cement Treated Material.
Table 1-1 Cement Treated Material design grading limit
| Sieve aperture | 31.5 | 26.5 | 19 | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| The upper limit | 100 | 86 | 79 | 72 | 62 | 45 | 31 | 22 | 15 | 10 | 7 | 5 | |
| Lower limit | 100 | 90 | 75 | 68 | 61 | 51 | 35 | 19 | 11 | 6 | 3 | 2 | 0 |
Obtain raw material each shelves composition to after the rubble screening of stock ground sampling, refer to table 1-2.Foundation
Design level deserves, in, lower limit be designed mixing and join, each shelves material mixture proportion is shown in Table shown in 1-3.
The raw material screening of table 1-2 cement stabilized macadam stock ground
Table 1-3 cement stabilized macadam each shelves material mixture proportion
| Specification | 40% | 35% | 45% |
| 10～30 | 28 | 30 | 26 |
| 10～20 | 20 | 22 | 18 |
| 5～10 | 12 | 13 | 11 |
| 0～5 | 40 | 35 | 45 |
According to cement stabilized macadam each shelves material mixture proportion stock ground raw material mixed and obtain after joining
Cement stabilized macadam test grating table see table shown in 1-4, cement stabilized macadam test grading curve
Figure is as shown in Figure 2.
Table 1-4 cement stabilized macadam test grating table
2, modified compaction test (50)
Cement stabilized macadam that cement dose is 6% is mixed after joining logical according to upper, middle and lower limit grating
Cross modified compaction test and obtain optimum moisture content and maximum dry density under each grating, refer to table 2 below-1
Shown in and Fig. 3,4,5 each grating tamping curve figure.
Table 2-1 6% cement dose cement stabilized macadam compaction test results
Cement stabilized macadam that cement dose is 7% is mixed according to middle limit grating after joining by heavy type
Compaction test obtains optimum moisture content and maximum dry density under each grating, refers to shown in table 2 below-2
Shown in Fig. 6.
Table 2-2 7% cement dose cement stabilized macadam compaction test results (median profile)
3, strength test results
According to hitting real result above, according to the degree of compaction standard of 98%, static pressure method molding 15 × 15
Cylinder specimen, at 20 DEG C ± 1 DEG C, health preserving 6 days in the environment of 98% humidity, then water 24 of satisfying
Hour, measure the unconfined compressive strength of test specimen.Result of the test is shown in Table 3-1, table 3-2.
The cement stabilized macadam strength test results of table 3-1 6% cement dose
| Statistical parameter | Grating-35 | Grating-40 | Grating-45 |
| Sample size | 9 | 9 | 9 |
| Meansigma methods | 5.17 | 4.67 | 5.07 |
| The coefficient of variation | 8.40% | 8.28% | 3.63% |
| Representative value | 4.46 | 4.04 | 4.77 |
Table 3-2 7% cement dose limits grating cement stabilized macadam strength test results
| Statistical parameter | Sample size | Meansigma methods | The coefficient of variation | Representative value |
| Grating-40 | 9 | 5.77 | 4.47% | 5.34 |
Conclusion:
Certain material factory building stones disclosure satisfy that design requirement, and test shows, when cement dose reaches 7%,
7 days unconfined water-saturated compression strength of cement stabilized macadam can reach the requirement of 5MPa.
The description that above embodiment specific illustrative to the present invention is presented is in order at explanation and retouches
The purpose stated.Description above is not intended to become milli exhaustively, is not intended to this
Bright it is limited to disclosed precise forms, it is clear that according to above-mentioned teaching, a lot of changes and change
It is all possible.The scope of the present invention is intended to be limited by appended claims and equivalents thereof
Fixed.
Claims (5)
1. exempting from the steady layer of setting-out that shakes, including graded broken stone, Binder Materials and water, its feature exists
In,
Described graded broken stone is made up of fine aggregate and coarse aggregate, and the particle diameter of described fine aggregate is less than
4.75mm, the particle diameter of described coarse aggregate is more than or equal to 4.75mm；
Described Binder Materials includes cement；
Exempting to shake in the steady layer of setting-out described, the percentage by weight of described cement is 6-9%, described water
Percentage by weight be 4-10%, the percentage by weight of described graded broken stone is 81-90%；
Wherein, described fine aggregate shared percentage by weight in described graded broken stone is 35-45%,
Described coarse aggregate shared percentage by weight in described graded broken stone is 55-65%.
The most according to claim 1 exempt from the steady layer of setting-out that shakes, it is characterised in that described cement
Percentage by weight be 7.5-8%.
The most according to claim 1 exempt from the steady layer of setting-out that shakes, it is characterised in that described in exempt to shake
The steady layer of setting-out is used as ground subsoil layer, wherein:
Being the sieve of 26.5mm for screen size, the percent of pass of described graded broken stone is 100%；
Being the sieve of 19mm for screen size, the percent of pass of described graded broken stone is 82-89%；
Being the sieve of 16mm for screen size, the percent of pass of described graded broken stone is 73-84%；
Being the sieve of 13.2mm for screen size, the percent of pass of described graded broken stone is 65-78%；
Being the sieve of 9.5mm for screen size, the percent of pass of described graded broken stone is 53-67%；
Being the sieve of 4.75mm for screen size, the percent of pass of described graded broken stone is 35-45%；
Being the sieve of 2.36mm for screen size, the percent of pass of described graded broken stone is 19-31%；
Being the sieve of 1.18mm for screen size, the percent of pass of described graded broken stone is 11-22%；
Being the sieve of 0.6mm for screen size, the percent of pass of described graded broken stone is 6-15%；
Being the sieve of 0.3mm for screen size, the percent of pass of described graded broken stone is 3-10%；
Being the sieve of 0.15mm for screen size, the percent of pass of described graded broken stone is 2-7%；
Being the sieve of 0.075mm for screen size, the percent of pass of described graded broken stone is 2-5%.
The most according to claim 1 exempt from the steady layer of setting-out that shakes, it is characterised in that described in exempt to shake
The steady layer of setting-out is used as sub-surface, wherein:
Being the sieve of 26.5mm for screen size, the percent of pass of described graded broken stone is 90-100%；
Being the sieve of 19mm for screen size, the percent of pass of described graded broken stone is 75-86%；
Being the sieve of 16mm for screen size, the percent of pass of described graded broken stone is 68-79%；
Being the sieve of 13.2mm for screen size, the percent of pass of described graded broken stone is 61-72%；
Being the sieve of 9.5mm for screen size, the percent of pass of described graded broken stone is 51-62%；
Being the sieve of 4.75mm for screen size, the percent of pass of described graded broken stone is 35-45%；
Being the sieve of 2.36mm for screen size, the percent of pass of described graded broken stone is 19-31%；
Being the sieve of 1.18mm for screen size, the percent of pass of described graded broken stone is 11-22%；
Being the sieve of 0.6mm for screen size, the percent of pass of described graded broken stone is 6-15%；
Being the sieve of 0.3mm for screen size, the percent of pass of described graded broken stone is 3-10%；
Being the sieve of 0.15mm for screen size, the percent of pass of described graded broken stone is 2-7%；
Being the sieve of 0.075mm for screen size, the percent of pass of described graded broken stone is 2-5%.
5. the construction party of the steady layer of setting-out that shakes according to exempting from according to any one of claim 1-4
Method, it is characterised in that described construction method comprises the following steps:
Preparation of construction, prepares construction raw material and construction apparatus；
The inspection of raw and process materials, tests to raw material；
Mixing and stirring, use the length cylinder of mixing more than 5m to mix and stir, the mixing time is more than 20s, mixes
With water consumption more than optimum moisture content 0.5-1%；
Comprcssive strength and water content detection, if comprcssive strength is defective or water content is defective,
Then return and mix and stir step；
Compound transports, and transports compound qualified for detection to job location；
Pave, utilize two pavers to pave, paver walking speed 1-2m/min, two
Platform paver, at a distance of 5-8m, overlaps 10-20cm；Pre-hammer ram frequency of vibration 40Hz, amplitude 20mm
Above；Screed frequency of vibration is less than 6Hz, and amplitude is more than 8mm；Material position in spiral distributor
It it is highly the 3/4 of maximum height or equal to maximum height；Paver both sides and outside arrange rubber and enclose
Skirt, prevents coarse aggregate and/or fine aggregate from vertically isolating；
First pressing, is carried out first pressing by pneumatic-tired rollers immediately following paver；
Multiple pressure, is carried out multiple pressure by single-drum road roller；
Final pressure, is carried out final pressure by dual-steel wheel road roller, eliminates wheel pelmatogram and carries out defect processing；
And
Health preserving and joint-cutting, carry out health preserving according to existing construction technique normalizing, and cut pre-cutting crack,
Pre-cutting crack spacing is 8-15m, and the degree of depth is to exempt from the 1/3 of setting-out steady layer gross thickness of shaking, and width is
3-5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072764.0A CN105753385A (en) | 2016-02-02 | 2016-02-02 | Vibrating-free pressurized water stable layer and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072764.0A CN105753385A (en) | 2016-02-02 | 2016-02-02 | Vibrating-free pressurized water stable layer and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105753385A true CN105753385A (en) | 2016-07-13 |
Family
ID=56342990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072764.0A Pending CN105753385A (en) | 2016-02-02 | 2016-02-02 | Vibrating-free pressurized water stable layer and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105753385A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101450A (en) * | 2017-12-15 | 2018-06-01 | 东南大学 | A kind of cement stabilized base course material and its design method |
| CN116950139A (en) * | 2023-07-31 | 2023-10-27 | 重庆诺为生态环境工程有限公司 | Stable framework compact structure, impermeable composite material, impermeable layer and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006096627A (en) * | 2004-09-30 | 2006-04-13 | Sumitomo Osaka Cement Co Ltd | Injection material for open-graded mixture, and method of constructing semi-flexible structure using the injection material |
| CN102503258A (en) * | 2011-10-15 | 2012-06-20 | 交通运输部公路科学研究所 | High-intensity low-crack cement-stabilized graded macadam and preparation method thereof |
| CN105084820A (en) * | 2015-08-10 | 2015-11-25 | 湖北益通建设股份有限公司 | Method for preparing cement-stabilized macadam material through waste concrete |
-
2016
- 2016-02-02 CN CN201610072764.0A patent/CN105753385A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006096627A (en) * | 2004-09-30 | 2006-04-13 | Sumitomo Osaka Cement Co Ltd | Injection material for open-graded mixture, and method of constructing semi-flexible structure using the injection material |
| CN102503258A (en) * | 2011-10-15 | 2012-06-20 | 交通运输部公路科学研究所 | High-intensity low-crack cement-stabilized graded macadam and preparation method thereof |
| CN105084820A (en) * | 2015-08-10 | 2015-11-25 | 湖北益通建设股份有限公司 | Method for preparing cement-stabilized macadam material through waste concrete |
Non-Patent Citations (4)
| Title |
|---|
| 张红春等: "《水泥稳定碎石基层施工新技术》", 31 December 2007, 中国科学技术出版社 * |
| 潘兆平等: "水泥稳定碎石路面基层材料水泥剂量范围试验", 《南京建筑工程学院学报》 * |
| 王宗昌等: "《建筑工程施工技术与管理》", 31 August 2014, 中国电力出版社 * |
| 魏青瑞: "《公路工程施工中的试验检测》", 31 August 2015, 山东大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108101450A (en) * | 2017-12-15 | 2018-06-01 | 东南大学 | A kind of cement stabilized base course material and its design method |
| CN116950139A (en) * | 2023-07-31 | 2023-10-27 | 重庆诺为生态环境工程有限公司 | Stable framework compact structure, impermeable composite material, impermeable layer and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhang et al. | Recycled aggregates from construction and demolition wastes as alternative filling materials for highway subgrades in China | |
| US8202021B2 (en) | Pavement rehabilitation using cold in-place asphalt pavement recycling | |
| CN101255040A (en) | Method for preparing regenerative road material by using waste building material and construction method thereof | |
| CN104389253B (en) | A kind of cement stabilized recycled concrete aggregate basic unit or the design method of underlayment | |
| Xu | Fractal dimension of demolition waste fragmentation and its implication of compactness | |
| CN111485468B (en) | Premixed foam asphalt base layer and subbase layer in-situ cold regeneration construction method | |
| CN107540282A (en) | A kind of cement stabilized grading crushed stones and its construction method using concrete debris | |
| Hashemian et al. | Application of foam bitumen in cold recycling and hydrated lime in airport pavement strengthening | |
| Shukla et al. | Design and evaluation of mechanical properties of cement grouted bituminous mixes (CGBM) | |
| Radzi et al. | An overview of asphalt mix designs using various compactors | |
| CN105753385A (en) | Vibrating-free pressurized water stable layer and construction method | |
| CN114032727A (en) | Construction method of large-particle-size cement regeneration base pavement structure | |
| CN113501689A (en) | Large-particle-size cement stabilized macadam and method thereof | |
| Harber | Applicability of no-fines concrete as a road pavement | |
| Edeh et al. | Reclaimed asphalt pavements-lime stabilization of clay as highway pavement materials | |
| Perera et al. | Design of a porous concrete mixture for drainage coverslab in pedestrian walkways | |
| CN115745482A (en) | Preparation method and application of soil-concreted rock composite material for roadbed base layer | |
| Rao et al. | Design and Analysis of Roller Compacted Concrete Pavements for Low Volume Roads in India | |
| Tutumluer et al. | Field performance evaluations of sustainable aggregate By-product applications | |
| Thomas et al. | Mechanistic-empirical design guide modeling of asphalt emulsion full depth reclamation mixes | |
| CN107700306A (en) | A kind of graded broken stone and its compound method of highway pavement flexbile base | |
| Edeh et al. | Reclaimed asphalt pavement stabilized using crushed concrete waste as highway pavement material | |
| CN107476160B (en) | Improvement method of laterite gravel road base layer | |
| Jayantha et al. | Use of demolished concrete waste for resurfacing of low volume roads in Sri Lanka using roller compacted concrete (RCC) technology | |
| CN110258224A (en) | Super thick recycled cement stabilized macadam base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |