CN114263075A - Multifunctional colored concrete structure and preparation process thereof - Google Patents
Multifunctional colored concrete structure and preparation process thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of concrete, and provides a multifunctional colored concrete structure which comprises a color layer, a concrete layer, a gravel layer and a foundation layer which are sequentially arranged, wherein reinforcing steel bars are distributed in the concrete layer in a staggered manner, and a plurality of detection elements are further arranged on the reinforcing steel bars at intervals; the color layer comprises the following raw materials in parts by weight: 10-20 parts of cementing agent, 1-3 parts of pigment, 2-4 parts of sulfide series light-storing self-luminous material, 80-100 parts of filler with the grain diameter of 1-2mm, 3-8 parts of auxiliary agent and 15-25 parts of water; through laying the reinforcing bar in concrete layer, can increase concrete layer's intensity, a plurality of detecting element of branch point installation on the reinforcing bar moreover can monitor concrete layer's permeability and crushing resistance, provides multi-functional effect for the structure of concrete, solves traditional concrete and has not satisfied the problem of present society to road or the diversified demand in ground.
Description
Technical Field
The invention belongs to the technical field of concrete, and particularly relates to a multifunctional colored concrete structure and a preparation process thereof.
Background
With the development of science and technology and the requirements of people living standard, the concrete is widely applied and can be used for the ground or the wall. The traditional concrete paved on the ground has single function and color, and mainly plays a role in leveling or promoting water seepage and drainage.
But these concretes have not met the current society's need for diversification of roads or floors.
Disclosure of Invention
The embodiment of the invention aims to provide a multifunctional colored concrete structure and a preparation process thereof, and aims to solve the problem that the traditional concrete cannot meet the diversified requirements of the current society on roads or ground.
The embodiment of the invention is realized in such a way that the multifunctional color concrete structure comprises a color layer, a concrete layer, a gravel layer and a foundation layer which are sequentially arranged, wherein reinforcing steel bars are distributed in the concrete layer in a staggered manner, and a plurality of detection elements are further arranged on the reinforcing steel bars at intervals;
the color layer comprises the following raw materials in parts by weight: 10-20 parts of cementing agent, 1-3 parts of pigment, 2-4 parts of sulfide series light-storing self-luminous material, 80-100 parts of filler with the grain diameter of 1-2mm, 3-8 parts of auxiliary agent and 15-25 parts of water;
the cementing agent comprises the following raw materials in parts by weight: 50-80 parts of styrene butadiene rubber, 10-15 parts of coumarone resin, 0.5-1 part of antioxidant, 1-1.5 parts of polymerization initiator and 40-60 parts of emulsifier.
Preferably, the filler is ceramic particles or quartz sand.
Preferably, the sulfide series light-storing self-luminous material is ZnS: Cu series, CaS: Bi series or CaS: Eu series.
Preferably, the adjuvant comprises a mixture of 1 to 1.5: 0.5-1: 0.3-0.8 of curing agent, compatibilizer and vulcanization accelerator.
Preferably, the vulcanization accelerator is tetramethylthiuram disulfide.
Preferably, the detection element comprises a humidity sensor and a strain sensor, and a protective pipe is coated on the periphery of a connecting line of the humidity sensor and the strain sensor.
Preferably, the concrete layer comprises the following raw materials in parts by weight: 80-100 parts of aggregate, 15-20 parts of cement, 15-20 parts of water and 8-13 parts of anti-crack fiber.
The invention also provides a preparation process of the multifunctional colored concrete structure, which comprises the following steps:
the method comprises the following steps: paving a foundation soil layer and compacting by a road roller of 500 kg; then paving a rubble layer, leveling mechanically and finally carrying out preliminary tamping by a small excavator;
step two: supporting a steel bar on the gravel layer through a steel bar support frame, and then installing a plurality of detection elements on the steel bar at intervals and points;
step three: pouring concrete to a position higher than the steel bars, then manually scraping or mechanically leveling to obtain a concrete layer, and finally covering and curing by a plastic film or other covering materials and waiting for drying;
step four: stirring styrene butadiene rubber and coumarone resin at 100-120 ℃ for 5h according to the parts by weight, cooling to 40-60 ℃, and continuously stirring for 30min in the process of adding an antioxidant, a polymerization initiator and an emulsifier to obtain a cementing agent;
step five: mixing and stirring a cementing agent, a pigment, sulfide series light-storage self-luminous materials, a filler with the grain diameter of mm, an auxiliary agent and water according to the parts, paving or spraying the mixture on the surface of the dried concrete layer to form a color layer, and obtaining the multifunctional colored concrete structure after the color layer is dried.
According to the multifunctional colored concrete structure provided by the embodiment of the invention, the strength of the concrete layer can be increased by arranging the steel bars in the concrete layer, and the permeability and the compressive resistance of the concrete layer can be monitored by installing the plurality of detection elements on the steel bars in different points, so that a multifunctional effect is provided for the structure of the concrete, and the problem that the traditional concrete cannot meet diversified requirements of the current society on roads or grounds is solved.
According to the embodiment of the invention, the color layer is arranged on the surface of the concrete layer, the sulfide series light-storing self-luminous material is added in the raw material of the color layer, so that the color layer can absorb and store visible light such as sunlight, lamplight, ultraviolet light, stray light and the like in the daytime and continuously emit light in the dark, the color layer has the appearance and performance of the original material, and has a special decorative effect of emitting light at night, so that the color layer plays a role in beauty, guidance, indication or warning; and styrene butadiene rubber is added into the cementing material of the color layer, so that the wear resistance can be provided for the color layer, and the functionality of the structure of the concrete is further improved.
Drawings
Fig. 1 is a cross-sectional view of a multifunctional colored concrete structure according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a reinforcing bar where a detection element is installed according to an embodiment of the present invention.
In the drawings: 1. a base soil layer; 2. a crushed stone layer; 3. a concrete layer; 4. a color layer; 5. reinforcing steel bars; 6. a reinforcing steel bar support frame; 7. a detection element; 8. installing a buckle; 9. and (4) a protective pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1-2, the multifunctional color concrete structure provided in the embodiment of the present invention includes a color layer 4, a concrete layer 3, a crushed stone layer 2, and a foundation layer 1, which are sequentially disposed, wherein reinforcing steel bars 5 are alternately disposed in the concrete layer 3, and a plurality of detection elements 7 are further installed on the reinforcing steel bars 5 at intervals; detecting element 7 includes humidity inductor and strain sensor, humidity inductor and strain sensor's connecting wire extends to 4 outsides on color layer, and humidity inductor and strain sensor's connecting wire periphery all cladding has protective tube 9.
Wherein the humidity inductor is installed on reinforcing bar 5 through installation knot 8, and strain sensor bonds on reinforcing bar 5 through the epoxy adhesive for building, perhaps also can set up the mounting groove on reinforcing bar 5 to bond strain sensor in the mounting groove.
The humidity sensor is used for detecting the dryness and humidity in the color layer 4, the strain sensor is used for monitoring the stress strain of the steel bar 5, the strain sensor is in contact with the surface of the steel bar 5, when the concrete is poured and solidified to form the color layer 4, the shrinkage generated in the process of forming the color layer 4 has certain compressive stress on the steel bar 5, the steel bar 5 and the concrete are firmly combined together due to cementation, friction and mechanical engaging force, however, under the action of factors such as external load, salt, carbon dioxide, dry-wet cycle, freeze-thaw cycle and the like, the steel bar 5 and the concrete are not tightly engaged together any more, certain slippage is generated, and the stress strain is changed accordingly; the stress strain is detected by sensing the strain. The detected result can be transmitted to the host computer through the connecting line, thereby being convenient for monitoring the performance of the color layer 4.
The invention also provides the following three examples to illustrate the preparation process of the water permeable concrete structure.
Example 1
The invention also provides a preparation process of the multifunctional colored concrete structure, which comprises the following steps:
the method comprises the following steps: paving the foundation soil layer 1 and compacting by a road roller of 500 kg; then laying a crushed stone layer 2, leveling mechanically and finally carrying out preliminary tamping by a small excavator;
step two: supporting a steel bar 5 on the gravel layer 2 through a steel bar support frame 6, and then installing a plurality of detection elements 7 on the steel bar 5 at intervals and points;
step three: mixing and stirring 80 parts of aggregate, 15 parts of cement, 15 parts of water and 8 parts of anti-crack fiber to obtain concrete, pouring the concrete on the gravel layer 2 to a position higher than the reinforcing steel bar 5, then leveling by manual scraping or mechanical leveling to obtain a concrete layer 3, and finally covering and curing by a plastic film or other covering materials and waiting for drying;
step four: stirring 50 parts of styrene butadiene rubber and 10 parts of coumarone resin at the temperature of 100 ℃ for 5 hours, cooling the temperature to 50 ℃, and continuously stirring for 30 minutes in the process of adding 0.5 part of antioxidant, 1 part of polymerization initiator and 40 parts of emulsifier to obtain a cementing agent;
step five: 10 parts of cementing agent, 1 part of pigment, 2 parts of sulfide series light-storing self-luminous material, 80 parts of ceramic particles with the particle size of 1mm, 2 parts of curing agent, 1 part of compatibilizer, 2 parts of tetramethyl thiuram disulfide and 15 parts of water are mixed and stirred, and then paved or sprayed on the surface of the dried concrete layer 3 to form a color layer 4, and the multifunctional color concrete structure is obtained after the color layer 4 is dried.
Example 2
The invention also provides a preparation process of the multifunctional colored concrete structure, which comprises the following steps:
the method comprises the following steps: paving the foundation soil layer 1 and compacting by a road roller of 500 kg; then laying a crushed stone layer 2, leveling mechanically and finally carrying out preliminary tamping by a small excavator;
step two: supporting a steel bar 5 on the gravel layer 2 through a steel bar support frame 6, and then installing a plurality of detection elements 7 on the steel bar 5 at intervals and points;
step three: mixing and stirring 90 parts of aggregate, 17 parts of cement, 17 parts of water and 10 parts of anti-crack fiber to obtain concrete, pouring the concrete on the gravel layer 2 to a position higher than the reinforcing steel bars 5, then leveling by manual scraping or mechanical leveling to obtain a concrete layer 3, and finally covering and curing by a plastic film or other covering materials and waiting for drying;
step four: stirring 65 parts of styrene-butadiene rubber and 12 parts of coumarone resin at the temperature of 100 ℃ for 5 hours, cooling the temperature to 50 ℃, and continuously stirring for 30min in the process of adding 0.8 part of antioxidant, 1.2 parts of polymerization initiator and 50 parts of emulsifier to obtain a cementing agent;
step five: 15 parts of cementing agent, 2 parts of pigment, 3 parts of sulfide series light-storing self-luminous material, 90 parts of ceramic particles with the particle size of 1mm, 2 parts of curing agent, 1 part of compatibilizer, 2 parts of tetramethyl thiuram disulfide and 23 parts of water are mixed and stirred, and then paved or sprayed on the surface of the dried concrete layer 3 to form a color layer 4, and the multifunctional color concrete structure is obtained after the color layer 4 is dried.
Example 3
The invention also provides a preparation process of the multifunctional colored concrete structure, which comprises the following steps:
the method comprises the following steps: paving the foundation soil layer 1 and compacting by a road roller of 500 kg; then laying a crushed stone layer 2, leveling mechanically and finally carrying out preliminary tamping by a small excavator;
step two: supporting a steel bar 5 on the gravel layer 2 through a steel bar support frame 6, and then installing a plurality of detection elements 7 on the steel bar 5 at intervals and points;
step three: mixing and stirring 100 parts of aggregate, 20 parts of cement, 20 parts of water and 13 parts of anti-crack fiber to obtain concrete, pouring the concrete on the gravel layer 2 to a position higher than the reinforcing steel bar 5, then leveling by manual scraping or mechanical leveling to obtain a concrete layer 3, and finally covering and curing by a plastic film or other covering materials and waiting for drying;
step four: stirring 80 parts of styrene butadiene rubber and 15 parts of coumarone resin at the temperature of 100 ℃ for 5 hours, cooling the temperature to 50 ℃, and continuously stirring for 30 minutes in the process of adding 1 part of antioxidant, 1.5 parts of polymerization initiator and 60 parts of emulsifier to obtain a cementing agent;
step five: 20 parts of cementing agent, 3 parts of pigment, 4 parts of sulfide series light-storing self-luminous material, 100 parts of ceramic particles with the particle size of 1mm, 2 parts of curing agent, 1 part of compatibilizer, 2 parts of tetramethyl thiuram disulfide and 25 parts of water are mixed and stirred, and then paved or sprayed on the surface of the dried concrete layer 3 to form a color layer 4, and the multifunctional color concrete structure is obtained after the color layer 4 is dried.
Example 4
In this embodiment, the wear resistance, the compressive resistance and the permeability of the multifunctional colored concrete structure obtained in the above embodiments 1 to 3 are detected and compared by a humidity sensor and a strain sensor, wherein the detected data of the permeability is detected by the humidity of a single water pouring amount at the same time point, and the permeability is calculated by the detected humidity value; after the detection data of the strain sensor are applied with the pressure with the same number of times, the compressive resistance is calculated through the detected displacement value; the abrasion resistance of the color layer 4 was calculated, and the calculation results are shown in the following table:
| abrasion value (g/cm)2) | Compressive strength (MPa) | Coefficient of water permeability (mm/s) | |
| Example 1 | 0.250 | 47.5 | 8.0 |
| Example 2 | 0.189 | 49.0 | 7.5 |
| Example 3 | 0.125 | 52.5 | 6.5 |
When the addition amount of the aggregate and the cement is more, the compressive strength is higher, but the water permeability coefficient is lower; the smaller the abrasion value, the more wear-resistant, the more styrene butadiene rubber is added, wherein the smaller the abrasion value of the color layer 4, the more wear-resistant; the embodiment 2 is selected as the best embodiment for the average wear resistance, compression resistance and permeability, and can be selected according to the construction requirements during the actual construction.
In the above embodiments, the vulcanization accelerator can vulcanize the rubber under certain conditions, i.e. make the linear molecular structure of the rubber become a three-dimensional network structure through the "bridging" of the vulcanizing agent, so as to obviously improve the mechanical and physical properties of the rubber; wherein the tetramethyl thiuram disulfide is mainly suitable for the vulcanization of styrene butadiene rubber.
In addition, sulfur in the tetramethyl thiuram disulfide can promote the effect of the sulfide series light-storing self-luminous material, and further increase the range of the excitation light wavelength of the sulfide series light-storing self-luminous material.
In the above embodiment, sulfide series light-storing self-luminous materials with colors can be selected according to field conditions, wherein the colors include yellow-green ZnS: Cu series, blue CaS: Bi series, and red CaS: Eu series.
It should be noted that the sulfide series light-storing self-luminous material is also called as a photoluminescent ultra-long afterglow light-storing material, a non-radioactive light-storing material, a non-powered self-luminous material, etc., and can continuously emit light for more than 12 hours in the dark after actively absorbing visible light such as sunlight, light, ultraviolet light, stray light, etc. for 5-10min, so that the color layer 4 has the appearance and performance of the original material, has a special decorative effect of night light emission, and plays a role in beauty, guidance, indication or warning.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The multifunctional colorful concrete structure is characterized by comprising a color layer (4), a concrete layer (3), a gravel layer (2) and a foundation layer (1) which are sequentially arranged, wherein reinforcing steel bars (5) are distributed in the concrete layer (3) in a staggered mode, and a plurality of detection elements (7) are further mounted on the reinforcing steel bars (5) at intervals;
the color layer (4) comprises the following raw materials in parts by weight: 10-20 parts of cementing agent, 1-3 parts of pigment, 2-4 parts of sulfide series light-storing self-luminous material, 80-100 parts of filler with the grain diameter of 1-2mm, 3-8 parts of auxiliary agent and 15-25 parts of water;
the cementing agent comprises the following raw materials in parts by weight: 50-80 parts of styrene butadiene rubber, 10-15 parts of coumarone resin, 0.5-1 part of antioxidant, 1-1.5 parts of polymerization initiator and 40-60 parts of emulsifier.
2. The multifunctional colored concrete structure according to claim 1, wherein the filler is ceramic particles or quartz sand.
3. The multifunctional colored concrete structure according to claim 1, wherein the sulfide-based light-storing self-luminous material is one of ZnS: Cu series, CaS: Bi series, and CaS: Eu series.
4. The multifunctional colored concrete structure according to claim 1, wherein the auxiliary comprises a mixture of the following components in a ratio of 1-1.5: 0.5-1: 0.3-0.8 of curing agent, compatibilizer and vulcanization accelerator.
5. The multifunctional colored concrete structure according to claim 4, wherein the vulcanization accelerator is tetramethylthiuram disulfide.
6. A multifunctional colored concrete structure according to claim 1, characterized in that said detecting element (7) comprises a humidity sensor and a strain sensor, the connecting line of which is covered with a protective tube (9).
7. The multifunctional colored concrete structure according to claim 1, characterized in that the concrete layer (3) comprises the following raw materials in parts by weight: 80-100 parts of aggregate, 15-20 parts of cement, 15-20 parts of water and 8-13 parts of anti-crack fiber.
8. A process for the preparation of a multifunctional colored concrete structure according to any one of claims 1 to 7, characterized in that it comprises the following steps:
the method comprises the following steps: paving the foundation soil layer (1) and compacting by a road roller of 500 kg; then laying a crushed stone layer 2, leveling mechanically and finally carrying out preliminary tamping by a small excavator;
step two: supporting a steel bar (5) on the gravel layer (2) through a steel bar support frame (6), and then installing a plurality of detection elements (7) on the steel bar (5) at intervals;
step three: pouring concrete on the gravel layer (2) until the concrete is higher than the steel bars (5), then manually scraping or mechanically leveling to obtain a concrete layer (3), and finally covering and curing through a plastic film or other covering materials and waiting for drying;
step four: stirring styrene butadiene rubber and coumarone resin at 100-120 ℃ for 5h according to the parts by weight, cooling to 40-60 ℃, and continuously stirring for 30min in the process of adding an antioxidant, a polymerization initiator and an emulsifier to obtain a cementing agent;
step five: mixing and stirring a cementing agent, a pigment, a sulfide series light-storage self-luminous material, a filler with the grain diameter of 1mm, an auxiliary agent and water according to the parts, paving or spraying the mixture on the surface of the dried concrete layer (3) to form a color layer (4), and obtaining the multifunctional color concrete structure after the color layer (4) is dried.
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