CN105503083A - Self-permeation polymer composite cement mortar for semi-flexible bituminous pavement and preparation method thereof - Google Patents
Self-permeation polymer composite cement mortar for semi-flexible bituminous pavement and preparation method thereof Download PDFInfo
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- CN105503083A CN105503083A CN201510994529.4A CN201510994529A CN105503083A CN 105503083 A CN105503083 A CN 105503083A CN 201510994529 A CN201510994529 A CN 201510994529A CN 105503083 A CN105503083 A CN 105503083A
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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
- C04B28/02—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 containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-permeation polymer composite cement mortar for a semi-flexible bituminous pavement. The self-permeation polymer composite cement mortar is prepared from, by weight, 30-50 parts of common Portland cement, 15-40 parts of river sand, 5-20 parts of mineral powder, 5-20 parts of polymer additives, 0.1-0.6 part of water reducer, 5-15 parts of an expanding agent and 15-30 parts of water. When the self-permeation polymer composite cement mortar is prepared, water and the polymer additives are poured in the a container and continuously stirred for 1.5 min in one direction with a glass bar for about 180 times; the common Portland cement, the river sand and the mineral powder are poured into a cement mortar stirring pot, a stirrer is started, and stirring is carried out for 5 s; the solution in the container, the water reducer and the expanding agent are evenly added within 10-20 s and stirred for 240 s to form the polymer composite cement mortar. The self-permeation polymer composite cement mortar solves the shrinkage crack problem of the semi-flexible pavement and has the remarkable advantages that liquidity is good, the size change is little, the number of shrinkage cracks is small, and durability is good.
Description
Technical field
The present invention relates to a kind of from osmosis type polyalcohol composite cement mortar and preparation method thereof, particularly half flexible bituminous pavement is with from osmosis type polyalcohol composite cement mortar.
Background technology
In the prior art, grout injection rests on test desk research mostly, and engineering practical experience is less.The tentative section of making has more existing grout poor fluidity, and filling rate is low, the problem that after strength derived value, desciccation crack is more.Patent documentation CN200910024197.1 discloses a kind of semi-flexible pavement injection grout and is made up of ordinary Portland cement, water, water reducer, air entrapment agent, swelling agent, its drying shrinkage is little, intensity is large, but the volume change of grout is comparatively large, poor with the adhesive property of pitch.CN201010179066.3 discloses a kind of self-inflow type semi-flexible composite pavement and constructional method thereof, its injection material mobility prepared and good water-retaining property, but intensity is too high, does not mate with the Young's modulus of pitch.CN201110141312.0 discloses a kind of Cement-Emulsified Asphalt injection material, and be made up of cement, mineral admixture, swelling agent, river sand, water reducer and emulsified bitumen, the strength of materials is large, good with the adhesivity of asphalt, but flowing property is poor, short construction period, should not control.CN201510034071.8 discloses a kind of strength cement-based grouting material, be made up of fast gravity die sulfate cement (ordinary Portland cement and aluminosulfate cement mix), ground slag powder, water reducer, economization agent, its strength derived value is fast, but construction workability is poor, difficulty of construction is large, and grout desciccation crack after being open to traffic is more.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of half flexible bituminous pavement with from osmosis type polyalcohol composite cement mortar, and it effectively can solve the problem of half-flexible pavement desciccation crack.
For achieving the above object, technical scheme of the present invention is achieved in that a kind of half flexible bituminous pavement is with from osmosis type polyalcohol composite cement mortar, and it synthesizes by comprising following each component:
Ordinary Portland cement 30-50 weight part
River sand 15-40 weight part
Breeze 5-20 weight part
Polymeric additives 5-20 weight part
Water reducer 0.1-0.6 weight part
Swelling agent 5-15 weight part
Water 15-30 weight part.
Another object of the present invention also provides a kind of half preparation method of flexible bituminous pavement from osmosis type polyalcohol composite cement mortar, it is characterized in that, comprising:
Step one, pours in container by 15-30 weight parts water and 5-20 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30-50 weight part, 15-40 weight part and the breeze of 5-20 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.6 weight part, and the swelling agent of 5-15 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
The present invention has following outstanding substantive distinguishing features and significant progress relative to prior art:
Technique is simple, adopt ordinary Portland cement 30-50 weight part, river sand 15-40 weight part, breeze 5-20 weight part, polymeric additives 5-20 weight part, water reducer 0.1-0.6 weight part, swelling agent 5-15 weight part, water 15-30 weight part synthesizes, during preparation, water and polymeric additives are stirred 1.5min, about 180 times, then by silicate cement, river sand and breeze mix 5s, finally, water reducer and swelling agent are stirred 240s, the sand-cement slurry that above-mentioned processing parameter obtains has good fluidity, volume change is little, desciccation crack is few, the remarkable advantage of good endurance, the problem of half-flexible pavement desciccation crack can be solved.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, and to make those skilled in the art the present invention may be better understood and can be implemented, but illustrated embodiment is not as a limitation of the invention.
Embodiment 1
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30-50 weight part
River sand 15-40 weight part
Breeze 5-20 weight part
Polymeric additives 5-20 weight part
Water reducer 0.1-0.6 weight part
Swelling agent 5-15 weight part
Water 15-30 weight part
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
Step one, pours in container by 15-30 weight parts water and 5-20 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30-50 weight part, 15-40 weight part and the breeze of 5-20 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.6 weight part, and the swelling agent of 5-15 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 2
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 35-40 weight part
River sand 23-28 weight part
Breeze 8-15 weight part
Polymeric additives 7-13 weight part
Water reducer 0.1-0.3 weight part
Swelling agent 5-10 weight part
Water 20-25 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
Step one, pours in container by 20-25 weight parts water and 7-13 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 35-40 weight part, 23-28 weight part and the breeze of 8-15 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.3 weight part, and the swelling agent of 5-10 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 3
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30.5 weight part
River sand 16.1 weight part
Breeze 5.9 weight part
Polymeric additives 6.1 weight part
Water reducer 0.2 weight part
Swelling agent 5.3 weight part
Water 15.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
15.7 weight parts waters and 6.1 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30.5 weight parts, 16.1 weight parts and the breeze of 5.9 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.2 weight part, and the swelling agent of 5.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 4
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 49.5 weight part
River sand 39.8 weight part
Breeze 19.1 weight part
Polymeric additives 19.3 weight part
Water reducer 0.5 weight part
Swelling agent 14.7 weight part
Water 29.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
29.7 weight parts waters and 19.3 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 49.5 weight parts, 39.8 weight parts and the breeze of 19.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.5 weight part, and the swelling agent of 14.7 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 5
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 40.3 weight part
River sand 27.6 weight part
Breeze 13.1 weight part
Polymeric additives 13.4 weight part
Water reducer 0.37 weight part
Swelling agent 10.3 weight part
Water 23.1 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
23.1 weight parts waters and 13.4 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 40.3 weight parts, 27.6 weight parts and the breeze of 13.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.37 weight part, and the swelling agent of 10.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 6
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30-50 weight part
River sand 15-40 weight part
Breeze 5-20 weight part
Flyash 4 weight part
Polymeric additives 5-20 weight part
Water reducer 0.1-0.6 weight part
Swelling agent 5-15 weight part
Water 15-30 weight part
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
Step one, pours in container by 15-30 weight parts water and 5-20 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30-50 weight part, 15-40 weight part and the flyash of 4 weight parts, the breeze of 5-20 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.6 weight part, and the swelling agent of 5-15 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 7
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 35-40 weight part
River sand 23-28 weight part
Breeze 8-15 weight part
Flyash 4 weight part
Polymeric additives 7-13 weight part
Water reducer 0.1-0.3 weight part
Swelling agent 5-10 weight part
Water 20-25 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
Step one, pours in container by 20-25 weight parts water and 7-13 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 35-40 weight part, 23-28 weight part and the flyash of 4 weight parts, the breeze of 8-15 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.3 weight part, and the swelling agent of 5-10 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 8
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30.5 weight part
River sand 16.1 weight part
Breeze 5.9 weight part
Flyash 4 weight part
Polymeric additives 6.1 weight part
Water reducer 0.2 weight part
Swelling agent 5.3 weight part
Water 15.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
15.7 weight parts waters and 6.1 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30.5 weight parts, 16.1 weight parts and the flyash of 4 weight parts, the breeze of 5.9 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.2 weight part, and the swelling agent of 5.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 9
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 49.5 weight part
River sand 39.8 weight part
Breeze 19.1 weight part
Flyash 4 weight part
Polymeric additives 19.3 weight part
Water reducer 0.5 weight part
Swelling agent 14.7 weight part
Water 29.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
29.7 weight parts waters and 19.3 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 49.5 weight parts, 39.8 weight parts and the flyash of 4 weight parts, the breeze of 19.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.5 weight part, and the swelling agent of 14.7 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 10
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 40.3 weight part
River sand 27.6 weight part
Breeze 13.1 weight part
Flyash 4 weight part
Polymeric additives 13.4 weight part
Water reducer 0.37 weight part
Swelling agent 10.3 weight part
Water 23.1 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preparation process comprises:
23.1 weight parts waters and 13.4 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 40.3 weight parts, 27.6 weight parts and the flyash of 4 weight parts, the breeze of 13.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.37 weight part, and the swelling agent of 10.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 11
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30-50 weight part
River sand 15-40 weight part
Breeze 5-20 weight part
Flyash 4 weight part
Hardening accelerator 0.1 weight part
Polymeric additives 5-20 weight part
Water reducer 0.1-0.6 weight part
Swelling agent 5-15 weight part
Water 15-30 weight part
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preferably, described hardening accelerator is the JD-68 type hardening accelerator that Shanxi Bo Yi Chemical Co., Ltd. produces.
Preparation process comprises:
Step one, pours in container by 15-30 weight parts water and 5-20 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30-50 weight part, 15-40 weight part and the flyash of 4 weight parts, the breeze of 5-20 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.6 weight part, the hardening accelerator of 0.1 weight part and the swelling agent of 5-15 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 12
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 35-40 weight part
River sand 23-28 weight part
Breeze 8-15 weight part
Flyash 4 weight part
Hardening accelerator 0.1 weight part
Polymeric additives 7-13 weight part
Water reducer 0.1-0.3 weight part
Swelling agent 5-10 weight part
Water 20-25 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preferably, described hardening accelerator is the JD-68 type hardening accelerator that Shanxi Bo Yi Chemical Co., Ltd. produces.
Preparation process comprises:
Step one, pours in container by 20-25 weight parts water and 7-13 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 35-40 weight part, 23-28 weight part and the flyash of 4 weight parts, the breeze of 8-15 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.3 weight part, the hardening accelerator of 0.1 weight part and the swelling agent of 5-10 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 13
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 30.5 weight part
River sand 16.1 weight part
Breeze 5.9 weight part
Flyash 4 weight part
Hardening accelerator 0.1 weight part
Polymeric additives 6.1 weight part
Water reducer 0.2 weight part
Swelling agent 5.3 weight part
Water 15.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preferably, described hardening accelerator is the JD-68 type hardening accelerator that Shanxi Bo Yi Chemical Co., Ltd. produces.
Preparation process comprises:
15.7 weight parts waters and 6.1 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30.5 weight parts, 16.1 weight parts and the flyash of 4 weight parts, the breeze of 5.9 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.2 weight part, the hardening accelerator of 0.1 weight part and the swelling agent of 5.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 14
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 49.5 weight part
River sand 39.8 weight part
Breeze 19.1 weight part
Flyash 4 weight part
Hardening accelerator 0.1 weight part
Polymeric additives 19.3 weight part
Water reducer 0.5 weight part
Swelling agent 14.7 weight part
Water 29.7 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preferably, described hardening accelerator is the JD-68 type hardening accelerator that Shanxi Bo Yi Chemical Co., Ltd. produces.
Preparation process comprises:
29.7 weight parts waters and 19.3 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 49.5 weight parts, 39.8 weight parts and the flyash of 4 weight parts, the breeze of 19.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.5 weight part, the hardening accelerator of 0.1 weight part and the swelling agent of 14.7 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Embodiment 15
The half flexible bituminous pavement of the present embodiment synthesizes by comprising following each component with from osmosis type polyalcohol composite cement mortar:
Ordinary Portland cement 40.3 weight part
River sand 27.6 weight part
Breeze 13.1 weight part
Flyash 4 weight part
Hardening accelerator 0.1 weight part
Polymeric additives 13.4 weight part
Water reducer 0.37 weight part
Swelling agent 10.3 weight part
Water 23.1 weight part.
Preferably, described ordinary Portland cement is the P.O42.5R type silicate cement that Chongqing Lafarge Cement Co., Ltd produces, and the presetting period is greater than 2.5h.
Preferably, described polymeric additives is Carboxy emulsion, the Carboxy emulsion (SD622S) that Shanghai Gaoqiao BASF AG produces.
Preferably, described water reducer is the JK-2 type water reducer that triumphant production is built in Beijing.
Preferably, the river sand of the fineness modulus 0.7-1.2 of described river sand, 1.18mm square hole sieve passes through; Described breeze is limestone dust, and 0.075mm square hole sieve passes through.
Preferably, described hardening accelerator is the JD-68 type hardening accelerator that Shanxi Bo Yi Chemical Co., Ltd. produces.
Preparation process comprises:
23.1 weight parts waters and 13.4 parts by weight polymer admixtures are poured in container by step one, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 40.3 weight parts, 27.6 weight parts and the flyash of 4 weight parts, the breeze of 13.1 weight parts in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.37 weight part, the hardening accelerator of 0.1 weight part and the swelling agent of 10.3 weight parts, and stirs 240s, to form polyalcohol composite cement mortar.
Test effect
Adopt above method to obtain from osmosis type polyalcohol composite cement mortar, more easily can will grout in the space of matrix asphalt, and combine with asphalt well.Meanwhile, the volume change of polyalcohol composite cement mortar of the present invention is little, and intensity is large, and drying shrinkage is little, and substantially increase the weather resistance of half flexible bituminous pavement, main performance index and requirement, see the following form.
For determining performance advantage of the present invention, the present invention being contrasted three kinds of example sand-cement slurry, carrying out degree of mobilization, folding strength, ultimate compression strength carries out simultaneous test.
Test apparatus: TYE-300 type pressure testing machine, DKZ-5000 type electric bending testing machine.
Test-results is as follows:
Slump test result illustrates that the degree of mobilization of polyalcohol composite cement mortar is lower than other two kinds of sand-cement slurry, but amplitude is very little.
Strength test results shows that the sand-cement slurry of admixture hardening accelerator can shorten the half-flexible pavement open to traffic time.And the ultimate compression strength of polyalcohol composite cement mortar is starkly lower than other two kinds of sand-cement slurry under the identical length of time, the backfin ratio reducing sand-cement slurry that adds of polymkeric substance is described, sand-cement slurry is had and becomes soft trend.
Contraction test result illustrates that the sand-cement slurry shrinkage of above-mentioned example all increases with the increase in the length of time, and through the contraction of 14 days, the shrinkage of polyalcohol composite cement mortar is starkly lower than other two kinds of sand-cement slurry, illustrates that polyalcohol composite cement mortar obviously can reduce the desciccation crack of half flexible bituminous pavement.
The above embodiment is only that protection scope of the present invention is not limited thereto in order to absolutely prove the preferred embodiment that the present invention lifts.The equivalent alternative or conversion that those skilled in the art do on basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1. half flexible bituminous pavement is with from an osmosis type polyalcohol composite cement mortar, and it synthesizes by comprising following each component:
Ordinary Portland cement 30-50 weight part
River sand 15-40 weight part
Breeze 5-20 weight part
Polymeric additives 5-20 weight part
Water reducer 0.1-0.6 weight part
Swelling agent 5-15 weight part
Water 15-30 weight part.
2. half flexible bituminous pavement as claimed in claim 1 is with from osmosis type polyalcohol composite cement mortar, and its each component weight is:
Ordinary Portland cement 35-40 weight part
River sand 23-28 weight part
Breeze 8-15 weight part
Polymeric additives 7-13 weight part
Water reducer 0.1-0.3 weight part
Swelling agent 5-10 weight part
Water 20-25 weight part.
3. half flexible bituminous pavement as claimed in claim 1 is with from osmosis type polyalcohol composite cement mortar, and its each component weight is:
Ordinary Portland cement 30.5 weight part
River sand 16.1 weight part
Breeze 5.9 weight part
Polymeric additives 6.1 weight part
Water reducer 0.2 weight part
Swelling agent 5.3 weight part
Water 15.7 weight part.
4. half flexible bituminous pavement as claimed in claim 1 is with from osmosis type polyalcohol composite cement mortar, and its component weight ratio comprises:
Ordinary Portland cement 49.5 weight part
River sand 39.8 weight part
Breeze 19.1 weight part
Polymeric additives 19.3 weight part
Water reducer 0.5 weight part
Swelling agent 14.7 weight part
Water 29.7 weight part.
5. half flexible bituminous pavement as claimed in claim 1 is with from osmosis type polyalcohol composite cement mortar, and its component weight ratio comprises:
Ordinary Portland cement 40.3 weight part
River sand 27.6 weight part
Breeze 13.1 weight part
Polymeric additives 13.4 weight part
Water reducer 0.37 weight part
Swelling agent 10.3 weight part
Water 23.1 weight part.
6. according to any one of claim 1 to 5 half flexible bituminous pavement, with from osmosis type polyalcohol composite cement mortar, is characterized in that,
Described ordinary Portland cement is P.O42.5R type silicate cement, and the presetting period is greater than 2.5h;
Described polymeric additives is Carboxy emulsion;
Described water reducer is JK-2 type water reducer.
7. half flexible bituminous pavement as claimed in claim 6 is with from osmosis type polyalcohol composite cement mortar, it is characterized in that, the river sand of the fineness modulus 0.7-1.2 of described river sand, and 1.18mm square hole sieve passes through; Described breeze is that 0.075mm square hole sieve passes through.
8. half preparation method of flexible bituminous pavement from osmosis type polyalcohol composite cement mortar, is characterized in that, comprising:
Step one, pours in container by 15-30 weight parts water and 5-20 parts by weight polymer admixture, with glass stick continuously stirring 1.5min in the same direction, and about 180 times;
Step 2, pours into the river sand of the ordinary Portland cement of 30-50 weight part, 15-40 weight part and the breeze of 5-20 weight part in sand-cement slurry agitator kettle, starts stirrer, mix and stir 5s;
Step 3, evenly adds the solution in described container in 10-20s, and the water reducer of 0.1-0.6 weight part, and the swelling agent of 5-15 weight part, and stirs 240s, to form polyalcohol composite cement mortar.
9. preparation method as claimed in claim 8, is characterized in that, also add the flyash of 4 weight parts in step 2.
10. preparation method as claimed in claim 9, is characterized in that, also add the hardening accelerator of 0.1 weight part in step 3.
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| CN107915427A (en) * | 2017-11-17 | 2018-04-17 | 苏州三创路面工程有限公司 | A kind of half-flexible pavement material and pavement construction engineering method |
| CN108863190A (en) * | 2018-08-08 | 2018-11-23 | 上海市建筑科学研究院 | A kind of semi-rigid Asphalt Pavement Base patching material semi-flexible |
| CN112661468A (en) * | 2021-01-20 | 2021-04-16 | 广东省湛江公路工程大队 | Semi-flexible pavement cement-based mortar composition and preparation method thereof |
| CN113186772A (en) * | 2021-03-08 | 2021-07-30 | 武汉理工大学 | Light heat-insulating semi-flexible anti-crack pavement and preparation method thereof |
| CN114634343A (en) * | 2022-04-21 | 2022-06-17 | 邯郸中建恒质工程项目管理有限公司 | Early-strength grouting material for semi-flexible pavement and preparation method and application thereof |
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| CN113186772A (en) * | 2021-03-08 | 2021-07-30 | 武汉理工大学 | Light heat-insulating semi-flexible anti-crack pavement and preparation method thereof |
| CN114634343A (en) * | 2022-04-21 | 2022-06-17 | 邯郸中建恒质工程项目管理有限公司 | Early-strength grouting material for semi-flexible pavement and preparation method and application thereof |
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