CN113998964A - Novel rubber concrete material and preparation method thereof - Google Patents
Novel rubber concrete material and preparation method thereof Download PDFInfo
- Publication number
- CN113998964A CN113998964A CN202111403272.2A CN202111403272A CN113998964A CN 113998964 A CN113998964 A CN 113998964A CN 202111403272 A CN202111403272 A CN 202111403272A CN 113998964 A CN113998964 A CN 113998964A
- Authority
- CN
- China
- Prior art keywords
- rubber
- sand
- cement
- reducing agent
- rubber concrete
- 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
- 239000005060 rubber Substances 0.000 title claims abstract description 76
- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000004568 cement Substances 0.000 claims abstract description 35
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 23
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 22
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 22
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 22
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002245 particle Substances 0.000 claims abstract description 22
- 239000004576 sand Substances 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000005303 weighing Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 2
- 238000007580 dry-mixing Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 230000000740 bleeding effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 206010016807 Fluid retention Diseases 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000010920 waste tyre Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Images
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
- 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
- C04B28/06—Aluminous cements
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a novel rubber concrete material which comprises the following raw materials: cement, sand, rubber particles, a water reducing agent, hydroxypropyl methyl cellulose and water. The preparation method comprises the steps of screening out rubber particles and sand with proper particle sizes, weighing the required weight of cement, sand, rubber, a water reducing agent and water, pouring the cement, the sand and the rubber into a container, then performing dry mixing to obtain a uniform rubber-sand-cement mixture, fusing the water reducing agent and hydroxypropyl methyl cellulose with water, slowly pouring water containing the water reducing agent and the hydroxypropyl methyl cellulose into the container filled with the rubber, the sand and the cement, and adding the water while stirring until the mixture is uniform. And then filling the uniformly stirred slurry into a mold within 15min, uniformly vibrating, standing for 3-4 hours, and then demolding and maintaining to obtain the required rubber concrete. The rubber concrete has good energy absorption and shock absorption performance.
Description
Technical Field
The invention relates to the technical field of rubber materials, in particular to a novel rubber concrete material and a preparation method of the novel rubber concrete.
Background
In recent years, the problem of environmental pollution caused by waste tires is more serious, so that the research on recycling of the waste tires becomes a hotspot, and abundant research results are obtained.
Because the density of the rubber particles is greatly different from that of sand and cement, and the cohesiveness of the rubber particles and the cement is relatively weak, most of rubber concrete manufactured by the traditional method has layering and uneven rubber distribution, the mechanical property of the rubber concrete is greatly reduced, and the layering degree is difficult to control, so that the rubber concrete sample or member has large individual difference. The invention provides a novel rubber concrete preparation scheme, which uses sulphoaluminate cement and hydroxypropyl methyl cellulose. The sulphoaluminate cement has the characteristic of quick setting, the slurry can lose fluidity and form strength in a short time, the hydroxypropyl methyl cellulose can increase the water retention of the rubber concrete, the aggregate bottom sinking phenomenon caused by the bleeding phenomenon can be effectively avoided, and meanwhile, the hydroxypropyl methyl cellulose can increase the viscosity of the slurry, and can effectively inhibit the movement of rubber particles in the slurry, thereby maintaining the uniformity of the rubber concrete.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a novel rubber concrete material and a preparation method of the novel rubber concrete. The rubber concrete has the functions of energy absorption and shock absorption, has smaller mass, has the characteristics of no layering and uniform aggregate distribution compared with the common rubber concrete, and obviously improves the mechanical property of the rubber concrete.
In order to achieve the purpose, the invention can adopt the following technical scheme:
a novel rubber concrete material comprises the following components in parts by weight:
the particle size of the rubber particles is 0.075-0.25 mm.
The sand has a particle size of 0.5 to 1 mm.
The cement is sulphoaluminate cement, and the initial setting starting time is 5-10 minutes.
The water reducing agent is a polycarboxylic acid water reducing agent or an amino carboxylic acid water reducing agent.
The hydroxypropylmethylcellulose was hydroxypropylmethylcellulose having a viscosity of 10 ten thousand as described above.
A preparation method of novel rubber concrete comprises the following steps:
step 1, obtaining the following components in parts by weight:
step 2, uniformly stirring the rubber particles, the sand and the cement to obtain a rubber-sand-cement mixture;
step 3, mixing water, a water reducing agent and hydroxypropyl methyl cellulose, and uniformly stirring to obtain a mixed solution;
step 4, pouring the mixed solution obtained in the step 3 into the rubber-sand-cement mixture obtained in the step 2 for 2-3 times, and pouring the mixed solution while stirring to obtain slurry finally;
and 5, pouring the slurry obtained in the step 4 into a mold within 15min, vibrating, standing for 2-3 hours, and then removing the mold and maintaining to obtain the rubber concrete.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the hydroxypropyl methyl cellulose is added, so that the water retention of the concrete can be increased, and the phenomenon of bleeding in the pressurizing and compacting process of the prepared rubber concrete is avoided, wherein the bleeding phenomenon can cause the aggregate in the rubber concrete to sink and the water to be analyzed out, so that the layering phenomenon of the rubber concrete is caused. Meanwhile, the hydroxypropyl methyl cellulose can increase the viscosity of the slurry and can effectively prevent rubber particles from moving in the slurry, so that the rubber can be uniformly distributed in the rubber concrete.
The invention uses the sulphoaluminate cement to ensure that the rubber concrete loses fluidity in a short time, the time for which the aggregate can displace in the rubber concrete is extremely short, and the uniformity of the rubber concrete can be ensured. Meanwhile, the rubber concrete has the defect of low strength, the early strength is not enough and is easy to damage, and the early strength of the rubber concrete can be greatly improved by the sulphoaluminate cement.
The method provided by the invention can conveniently prepare the uniform rubber concrete, and the mechanical property of the rubber concrete is correspondingly improved along with the improvement of the uniformity of the rubber concrete. The rubber concrete prepared by the traditional method usually has a rubber deposition phenomenon, and usually starts to damage from a rubber deposition position when being loaded and damaged.
Drawings
FIG. 1 is an appearance view of a control sample, and (a) is a front view of the control; (b) is a top view of the control group;
FIG. 2 is an appearance view of a novel rubber concrete sample of the present invention, (a) is a front view of the novel rubber concrete; (b) is a top view of the novel rubber concrete;
FIG. 3 is a stress-strain curve of a control group (randomly taking 5 samples as reference);
fig. 4 is a stress-strain curve of the novel rubber concrete (5 samples were randomly taken as a reference).
Detailed Description
The present invention will be described in further detail with reference to examples for the purpose of facilitating understanding and practice of the invention by those of ordinary skill in the art, and it is to be understood that the present invention has been described in the illustrative embodiments and is not to be construed as limited thereto.
Example 1:
a novel rubber concrete material comprises the following components in parts by weight:
a preparation method of novel rubber concrete comprises the following steps:
step 1, obtaining the following components in parts by weight:
step 2, uniformly stirring the rubber particles, the sand and the cement to obtain a rubber-sand-cement mixture;
step 3, mixing water, a water reducing agent and hydroxypropyl methyl cellulose, and uniformly stirring to obtain a mixed solution;
step 4, pouring the mixed solution obtained in the step 3 into the rubber-sand-cement mixture obtained in the step 2 for 2-3 times, and pouring the mixed solution while stirring to obtain slurry finally;
and 5, pouring the slurry obtained in the step 4 into a mold within 15min, vibrating, standing for 2-3 hours, and then removing the mold and maintaining to obtain the rubber concrete.
Preferably, the particle size of the rubber particles is 0.075-0.25 mm.
Preferably, the sand has a particle size of 0.5 to 1 mm.
Preferably, the cement is a sulphoaluminate cement.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent or an aminocarboxylic acid water reducing agent.
Preferably, the hydroxypropylmethylcellulose is hydroxypropylmethylcellulose having a viscosity of 10 ten thousand.
Tests prove that when the content of the hydroxypropyl methyl cellulose is 0.3 percent of the weight of water, the sample can not generate a cavity and can not generate a layering phenomenon, and the hydroxypropyl methyl cellulose is a better choice; the mass ratio of rubber, sand and cement is 1: 1: 1.333, the rubber concrete has the best energy consumption effect and impact resistance, and is a better choice.
Example 2:
a preparation method of novel rubber concrete comprises the following steps:
step 1, obtaining the following components in parts by weight:
step 2, uniformly stirring 225g of rubber particles, 225g of sand and 300g of sulphoaluminate cement to obtain a rubber-sand-cement mixture;
step 3, mixing 250g of water, 2.5g of water reducing agent and 0.75g of hydroxypropyl methyl cellulose, and uniformly stirring to obtain a mixed solution;
step 4, pouring the mixed solution obtained in the step 3 into the rubber-sand-cement mixture obtained in the step 2 for 3 times, and pouring the mixed solution while stirring to obtain slurry finally;
and 5, pouring the slurry obtained in the step 4 into a mold within 15min, vibrating, standing for 2-3 hours, and then removing the mold and maintaining to obtain the rubber concrete.
In the embodiment, the particle size of the rubber particles is 0.075-0.25 mm; the grain size of the sand is 0.5-1 mm; the cement is sulphoaluminate cement; the water reducing agent is a polycarboxylic acid water reducing agent; the hydroxypropylmethylcellulose was hydroxypropylmethylcellulose having a viscosity of 10 ten thousand.
Fig. 4 is a sample stress-strain curve of 5 new rubber concretes obtained by the above steps in this example.
Control group:
the common concrete comprises, by weight, 50 parts of sand, 66.7 parts of cement, 0.56 part of a water reducing agent and 55.6 parts of water. The grain size of the sand is 0.5-1 mm, the cement is ordinary portland cement, the water reducing agent is a polycarboxylic acid water reducing agent,
step 1.1, preparing the control component;
step 1.2, weighing 225g of sand and 300g of ordinary portland cement, and uniformly stirring to obtain a rubber-sand-cement mixture;
step 1.3, weighing 250g of water and 2.5g of water reducing agent, and uniformly stirring to obtain a solution;
step 1.4, pouring the solution obtained in the step 1.3 into the mixture obtained in the step 2 for 2-3 times, and pouring the solution while stirring to obtain slurry finally;
and step 1.5, pouring the slurry obtained in the step 1.4 into a mold, standing, and then demolding and maintaining.
FIG. 3 is a stress-strain curve of 5 control groups obtained by the above control group procedure.
It should be noted that the specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The novel rubber concrete material is characterized by comprising the following components in parts by weight:
2. the novel rubber concrete according to claim 1, wherein the rubber particles have a particle size of 0.075 to 0.25 mm.
3. The novel rubber concrete according to claim 1, wherein the sand has a particle size of 0.5 to 1 mm.
4. The novel rubber concrete according to claim 1, characterized in that said cement is a sulphoaluminate cement.
5. The novel rubber concrete according to claim 1, wherein the water reducing agent is a polycarboxylic acid-based water reducing agent or an aminocarboxylic acid-based water reducing agent.
6. The novel rubber concrete according to claim 1, wherein the hydroxypropylmethylcellulose is a hydroxypropylmethylcellulose having a viscosity of 10 ten thousand.
7. The preparation method of the novel rubber concrete is characterized by comprising the following steps:
step 1, obtaining the following components in parts by weight:
step 2, uniformly stirring the rubber particles, the sand and the cement to obtain a rubber-sand-cement mixture;
step 3, mixing water, a water reducing agent and hydroxypropyl methyl cellulose, and uniformly stirring to obtain a mixed solution;
step 4, pouring the mixed solution obtained in the step 3 into the rubber-sand-cement mixture obtained in the step 2 for 2-3 times, and pouring the mixed solution while stirring to obtain slurry finally;
and 5, pouring the slurry obtained in the step 4 into a mold within 15min, vibrating, standing for 2-3 hours, and then removing the mold and maintaining to obtain the rubber concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403272.2A CN113998964A (en) | 2021-11-24 | 2021-11-24 | Novel rubber concrete material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111403272.2A CN113998964A (en) | 2021-11-24 | 2021-11-24 | Novel rubber concrete material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113998964A true CN113998964A (en) | 2022-02-01 |
Family
ID=79930124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111403272.2A Pending CN113998964A (en) | 2021-11-24 | 2021-11-24 | Novel rubber concrete material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113998964A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328046A (en) * | 2008-07-29 | 2008-12-24 | 中国建筑材料科学研究总院 | Bonding mortar for exterior wall external insulation and preparation thereof |
| CN101328048A (en) * | 2008-07-29 | 2008-12-24 | 中国建筑材料科学研究总院 | Surface mortar for exterior wall external insulation and preparation thereof |
| CN102674779A (en) * | 2012-06-12 | 2012-09-19 | 北京振利节能环保科技股份有限公司 | Modified expansion water-stop mortar and preparation method thereof |
| CN107555886A (en) * | 2016-06-30 | 2018-01-09 | 张永利 | A kind of rubber grain sound insulating pad |
-
2021
- 2021-11-24 CN CN202111403272.2A patent/CN113998964A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101328046A (en) * | 2008-07-29 | 2008-12-24 | 中国建筑材料科学研究总院 | Bonding mortar for exterior wall external insulation and preparation thereof |
| CN101328048A (en) * | 2008-07-29 | 2008-12-24 | 中国建筑材料科学研究总院 | Surface mortar for exterior wall external insulation and preparation thereof |
| CN102674779A (en) * | 2012-06-12 | 2012-09-19 | 北京振利节能环保科技股份有限公司 | Modified expansion water-stop mortar and preparation method thereof |
| CN107555886A (en) * | 2016-06-30 | 2018-01-09 | 张永利 | A kind of rubber grain sound insulating pad |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108164208A (en) | A kind of nano silicon dioxide regeneration concrete and preparation method thereof | |
| CN110885202B (en) | Preparation process of pre-coated aggregate interlocking concrete | |
| CN109095847B (en) | Soft and hard rock composite rock stratum similar material and method for preparing soft and hard rock by adopting same | |
| CN107721287B (en) | A kind of diatomite modified concrete and preparation method thereof | |
| CN107879681B (en) | Concrete slurry, alkali-activated light rubber recycled concrete and preparation method thereof | |
| CN107265892B (en) | Method for regenerating damaged cement concrete pavement into road base | |
| CN110386786B (en) | Foam concrete and building block | |
| CN111606636A (en) | Preparation method of early-strength glutinous rice mortar material | |
| CN108503313A (en) | A kind of cement soil material and preparation method thereof that ferronickel ground-slag is mixed again with miberal powder | |
| CN112142400A (en) | Concrete with steel slag and waste rubber as fine aggregate and application thereof | |
| WO2016198087A1 (en) | Method to produce aggregates from unsettled cementitious mixtures | |
| CN113603406B (en) | Baking-free and steaming-free foam heat-insulation composite material and preparation method thereof | |
| CN113998964A (en) | Novel rubber concrete material and preparation method thereof | |
| CN111517740B (en) | Cement-based composite material for 3D printing and preparation method thereof | |
| CN111995281A (en) | Preparation method and application of cement additive based on waste orange peel | |
| CN108801739B (en) | Method for manufacturing artificial physical rock core | |
| CN111302697A (en) | Viscosity-adjusting concrete admixture | |
| CN113929393B (en) | Self-compacting C70 concrete and preparation method thereof | |
| CN114751687B (en) | Fiber composite modified desert sand reinforced cement mortar and preparation method thereof | |
| CN108455964A (en) | A kind of environmentally friendly fast repairing material and preparation method thereof | |
| CN112897953B (en) | Recycled concrete with impermeability and preparation method thereof | |
| CN108569867A (en) | Modified cement mortar patching material | |
| CN113480263A (en) | 3D printing concrete prepared from recycled aggregate and preparation method thereof | |
| CN113943136A (en) | Molybdenum tailing concrete replacing cement slurry and preparation method thereof | |
| CN104944856B (en) | A kind of regeneration concrete method for preparing stability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220201 |
|
| RJ01 | Rejection of invention patent application after publication |