A kind of Cement Concrete Pavement Reconstruction material and preparation method thereof
Technical field
The present invention relates to building material technical field, specifically a kind of Cement Concrete Pavement Reconstruction material and its preparation side
Method.
Background technique
Pavement crack mainly appears on highway early damage as one of highway in China Major Diseases, such as handles not in time
The service performance that will seriously affect road increases considerably the road maintenance phase with maintenance cost in advance, while directly shortening road
Road service life.In the Northeast, China, since winter low temperature is low, generally at -20~-40 DEG C, summer high temperature can but reach 40
DEG C or so.Traditional patching material mostly uses modified asphalt, and common base joint grouting glue, affixing kerfs belt etc, these materials are low
At -30 DEG C of temperature, material has become glassy state, during operation, occurs as soon as cracking quickly under the action of vehicle-mounted, often
In a complete winter, part or major part crack patching material, and in the environment of being transferred to summer high temperature, patching material then softens
It becomes sticky as wheel is taken away.It is unable to reach the requirement of road maintenance at all.Existing Concrete Highway road surface, when repairing, one
As be directly directly to pour into the concrete newly poured in pit slot, its surface and road surface are smoothed out, then i.e. completion is repaired after conserving
It is multiple.This mode, there are construction time length, to the cohesion of original cement concrete low the defects of being easy to fall off.Especially pair
It is shorter and shorter to the time requirement of open to traffic in order to reduce economic loss in the transport hub location of highway, to repairing
The life requirement of material is higher and higher.
Summary of the invention
It is above-mentioned to solve the purpose of the present invention is to provide a kind of Cement Concrete Pavement Reconstruction material and preparation method thereof
The problem of being proposed in background technique.
To achieve the above object, the invention provides the following technical scheme:
A kind of Cement Concrete Pavement Reconstruction material, the raw material according to parts by weight includes: 55-63 parts of portland cement, red
Beautiful 18-26 parts of soil, 47-55 parts of sandstone, 9-17 parts of casein, 11-19 parts of polyethylene terephthalate, polylactic acid 16-24
Part.
As a further solution of the present invention: sandstone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and
Mass ratio is 1:1.8-2.5:1.3-1.5.
As a further solution of the present invention: sandstone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and
Mass ratio is 1:2.2:1.4.
As a further solution of the present invention: the Cement Concrete Pavement Reconstruction material, according to the raw material packet of parts by weight
It includes: 57-61 parts of portland cement, red beautiful 20-24 parts of soil, 49-53 parts of sandstone, 11-15 parts of casein, poly terephthalic acid second two
13-17 parts of alcohol ester, 18-22 parts of polylactic acid.
As a further solution of the present invention: the Cement Concrete Pavement Reconstruction material, according to the raw material packet of parts by weight
Include: 59 parts of portland cement, 51 parts of sandstone, 13 parts of casein, 15 parts of polyethylene terephthalate, gathers red beautiful 22 parts of soil
20 parts of lactic acid.
A kind of preparation method of Cement Concrete Pavement Reconstruction material, comprising the following steps:
Red beautiful soil, casein, polyethylene terephthalate and polylactic acid are crushed, cross 100-120 mesh, mixing is equal
Portland cement is added after even to be mixed evenly;Then sandstone is added and stirs evenly, adds required quality percentage and contains
The sodium hydrate aqueous solution of 5-10% is measured, stands 40-50min after 25-30min is mixed up to patching material.
As a further solution of the present invention: mixing speed 200-350r/min.
Compared with prior art, the beneficial effects of the present invention are:
The present invention have good low temperature crack resistance, the stability of high temperature, the caking property at interface, ageing resistance and resist it is tired
Labor performance is suitable for the crack of the cement concrete pavement under the cold climate conditions of pole and the repairing of seam.The present invention have compared with
High mobility, can be closely knit by big mobility itself, self-assembling formation intensity, and the repairing for express highway pavement is quick
Effectively, it does not need large roller to roll, it is only necessary to which the maintenance work of road surface pit slot can be rapidly completed in simple paving and leveling.This
Invention can be open to traffic for 1h after repairing road surface, be substantially shorter the open to traffic time, without repairing repeatedly after primary repairing.This
Invented technology is simple and easy, and the construction time is short, the effect of excellent bonding performance, has deformability after repairing at road surface breakage
It is good, waterproof performance is good, Wear-resistant, high-temperature resistant, it is low temperature resistant the features such as, effectively improve the damage resistance energy on road surface, extend highway
Service life.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement
Mud 55kg, red beautiful soil 18kg, sandstone 47kg, casein 9kg, polyethylene terephthalate 11kg, polylactic acid 16kg.Sandstone
The big sand of the middle sand of fine sand, 3-5mm including < 3mm, 5-8mm, and mass ratio is 1:1.8:1.3.By red beautiful soil, casein,
Polyethylene terephthalate is crushed with polylactic acid, is sieved with 100 mesh sieve, and portland cement is added after mixing and is mixed
It is even;Then sandstone is added and stirs evenly, mixing speed 200r/min.Add the hydrogen of required mass percentage 5%
Aqueous solution of sodium oxide stands 40min after 25min is mixed up to patching material.
Embodiment 2
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement
Mud 63kg, red beautiful soil 26kg, sandstone 55kg, casein 17kg, polyethylene terephthalate 19kg, polylactic acid 24kg.Sand
Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.5:1.5.By red beautiful soil, cheese
Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs
It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 350r/min.Add required mass percentage 10%
Sodium hydrate aqueous solution, be mixed 30min after stand 50min up to patching material.
Embodiment 3
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement
Mud 57kg, red beautiful soil 20kg, sandstone 49kg, casein 11kg, polyethylene terephthalate 13kg, polylactic acid 18kg.Sand
Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese
Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs
It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8%
Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Embodiment 4
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement
Mud 61kg, red beautiful soil 24kg, sandstone 53kg, casein 15kg, polyethylene terephthalate 17kg, polylactic acid 22kg.Sand
Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese
Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs
It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8%
Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Embodiment 5
In the embodiment of the present invention, a kind of Cement Concrete Pavement Reconstruction material, the raw material according to quality includes: silicate cement
Mud 59kg, red beautiful soil 22kg, sandstone 51kg, casein 13kg, polyethylene terephthalate 15kg, polylactic acid 20kg.Sand
Stone includes the big sand of the fine sand of < 3mm, the middle sand of 3-5mm, 5-8mm, and mass ratio is 1:2.2:1.4.By red beautiful soil, cheese
Element, polyethylene terephthalate and polylactic acid crush, cross 120 meshes, and portland cement mixing is added after mixing and stirs
It mixes uniformly;Then sandstone is added and stirs evenly, mixing speed 250r/min.Add required mass percentage 8%
Sodium hydrate aqueous solution, be mixed 28min after stand 45min up to patching material.
Correlated performance test is carried out to patching material made from embodiment 1-5 respectively, result is as shown in table 1-2.
Table 1
Table 2
As can be seen that implementing the performance of 1-5 can meet the requirements from table 1-2, patching material of the present invention is on repairing road surface
When pit slot, without compacting, fills up good material and wait for that temperature reduction can be open to traffic, quickly and effectively easily implement.
About agent on crack resistance of concrete in mechanical property tests method reference " highway engineering cement and cement concrete testing regulations "
Compressive strength test method experiment is rolled over, the results are shown in Table 3:
Table 3
|
1h |
1d |
3d |
28d |
Flexural strength (MPa) |
3.1-3.6 |
3.9-4.2 |
5.3-5.8 |
5.9-6.2 |
Compression strength (MPa) |
29.8-36.8 |
49.5-54.6 |
56.9-61.8 |
63.6-66.9 |
With the open to traffic that can be open to traffic after this patching material remedial cement concrete road surface 1h.And shrinking percentage is after testing
It was found that early stage shows as microdilatancy, but expansion rate is minimum, on concrete inner structure almost without influence, 28 days shrinking percentages of concrete
It is 0.015%, meets mending concrete required in " Cement Concrete Pavement Slab block patching material and repairing technique compare "
28d shrinking percentage is no more than 0.02% requirement.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.