CN113416030B

CN113416030B - Ecological ramp grass planting slope protection brick and production process thereof

Info

Publication number: CN113416030B
Application number: CN202110913453.3A
Authority: CN
Inventors: 郑建东; 郑建锋
Original assignee: Wenzhou Hengfu New Building Material Co ltd
Current assignee: Wenzhou Hengfu New Building Material Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-21
Anticipated expiration: 2041-08-10
Also published as: CN113416030A

Abstract

The application relates to an ecological ramp grass planting slope protection brick and a production process thereof, and the ecological ramp grass planting slope protection brick comprises a brick body, wherein the brick body comprises the following components in parts by weight: 40-50 parts of cement; 12-15 parts of polybutadiene latex; 6-8 parts of polypropylene glycol diglycidyl ether; 5-6 parts of polybutylene terephthalate; 2-3 parts of silicon carbide; 4-5 parts of fine aggregate; 20-25 parts of water; a production process of ecological ramp grass planting slope protection bricks comprises raw material mixing and slope protection brick forming. The application has the following advantages and effects: the blend of polybutadiene latex and polypropylene glycol diglycidyl ether is mixed with polybutylene terephthalate, and when the blend is stretched or compressed, environmental static pressure can be generated between phase interfaces to promote the polybutylene terephthalate to show toughness deformation, thereby achieving the toughening effect; and when a crack is generated in strain, the polybutylene terephthalate stretches across two ends of the crack to generate extension deformation, so that the crack is prevented from expanding, energy is absorbed, and the aim of improving the wear resistance of the slope protection brick is fulfilled.

Description

Ecological ramp grass planting slope protection brick and production process thereof

Technical Field

The application relates to the technical field of slope protection bricks, in particular to an ecological ramp grass planting slope protection brick and a production process thereof.

Background

Ecological slope protection, which is a slope protection technology for supporting a slope or a side slope by basic knowledge of subjects such as comprehensive engineering mechanics, soil science, ecology, phytology and the like to form a comprehensive slope protection system consisting of plants or engineering and plants; the slope protection brick is suitable for various side slope protection, can conveniently make the slope surface of abrupt slope or gentle slope stable, can also lay as non-domatic grass planting brick.

The existing chinese patent publication No. CN1141987A discloses a slope protection composite brick, which is a rectangular composite brick, wherein two adjacent sides of the composite brick extend outward and have tapered protrusions, and the other two sides of the composite brick form inward recessed grooves, wherein the grooves form tapers corresponding to the protrusions, so that four sides of the composite brick have protrusions and grooves capable of matching with other composite bricks.

In view of the above-mentioned related art, the applicant believes that the current slope protection bricks do not have very good abrasion resistance, and thus, the improvement thereof is still awaited.

Disclosure of Invention

In order to improve the wear resistance of slope protection brick, this application provides an ecological ramp grass planting slope protection brick and production technology thereof.

First aspect, the application provides an ecological ramp grass planting bank protection brick adopts following technical scheme:

the utility model provides an ecological ramp grass planting slope protection brick, includes the brick body, the raw materials of the brick body include the component of following parts by weight:

40-50 parts of cement;

12-15 parts of polybutadiene latex;

6-8 parts of polypropylene glycol diglycidyl ether;

5-6 parts of polybutylene terephthalate;

2-3 parts of silicon carbide;

4-5 parts of fine aggregate;

20-25 parts of water.

By adopting the technical scheme, the polybutylene terephthalate is taken as a disperse phase, the blend of the polybutadiene latex and the polypropylene glycol diglycidyl ether is taken as a continuous phase, and the polypropylene glycol diglycidyl ether is dissolved with the polybutadiene latex, so that the dispersity of the continuous phase is increased, and a certain viscosity reduction effect is achieved, so that the polybutylene terephthalate can be more uniformly dispersed in the polybutadiene latex; when the blend of polybutadiene latex and polypropylene glycol diglycidyl ether is uniformly mixed with the polybutylene terephthalate, the wear resistance of the obtained slope protection brick can be better improved, and the reason may be that a higher environmental static pressure may be generated between phase interfaces during stretching or compression to promote the dispersed phase polybutylene terephthalate to show toughness deformation, so as to play a toughening effect; when a crack is generated in the strain, the polybutylene terephthalate stretches across two ends of the crack to generate extension deformation, so that the crack is prevented from expanding and energy is absorbed; after being mixed with components such as cement, silicon carbide, fine aggregate and the like, the purpose of improving the wear resistance of the slope protection brick is achieved.

Preferably, the brick body further comprises 3-4 parts of rosin pentaerythritol ester by weight.

By adopting the technical scheme, the rosin pentaerythritol ester has higher compatibility and stability, and the rosin pentaerythritol ester and the polybutadiene latex are blended in the presence of the polypropylene glycol diglycidyl ether, so that the polybutadiene latex and other components are combined more tightly, the prepared slope protection brick has a compact structure, and the aim of enhancing the wear resistance is fulfilled.

Preferably, the raw materials of the brick body also comprise 2-3 parts of epoxy modified polymer by weight.

By adopting the technical scheme, the epoxy modified polymer is a high-performance product obtained by modifying epoxy resin, has the effects of improving impact resistance and further toughening, and is favorable for improving the wear resistance of the slope protection brick.

Preferably, the preparation method of the epoxy modified polymer comprises the following steps: mixing 7-10 parts of epoxy resin and 2-3 parts of 2-aminobenzaldehyde, adding 3-5 wt% of N, N-dimethylbenzylamine as a catalyst, stirring at 90-95 ℃ for reaction for 2-3h, continuously heating to 100 ℃ and 105 ℃, preserving heat for 1-1.5h, and cooling.

By adopting the technical scheme, the toughness and the wear resistance of the slope protection brick can be further enhanced by adding the epoxy modified polymer obtained by reacting the active group on the 2-aminobenzaldehyde with the epoxy group of the epoxy resin.

Preferably, the epoxy resin comprises the following components in parts by weight: 2-aminobenzaldehyde =4: 1.

By adopting the technical scheme, experiments prove that when the weight part ratio of the epoxy resin to the 2-aminobenzaldehyde is 4:1, the obtained epoxy modified polymer has the best effect of improving the wear resistance of the slope protection brick.

Preferably, the raw materials of the brick body also comprise 1-2 parts of 2-vinylpyridine in parts by weight.

By adopting the technical scheme, the 2-vinylpyridine with strong polarity is blended with the epoxy modified polymer, and the obtained product can greatly improve the bonding strength among all components, has obvious toughening effect, and thus assists in improving the wear resistance of the slope protection brick.

Preferably, the brick body comprises a transverse part and a longitudinal part which are spliced with each other, and grooves are formed at the corners of the two side walls of the transverse part which are parallel to the longitudinal part; the middle part of the side wall of the longitudinal part far away from the transverse part is provided with an open triangular groove; an open slot is formed at the position, corresponding to the triangular slot, of the side wall of the transverse part far away from the longitudinal part.

The second aspect, the application provides a production technology of ecological ramp grass planting slope protection brick, adopts following technical scheme:

a production process of ecological ramp grass planting slope protection bricks comprises the following steps:

s1, mixing raw materials; uniformly mixing polybutadiene latex and polypropylene glycol diglycidyl ether, adding polybutylene terephthalate, and stirring at 35-40 ℃ for 25-30min to obtain a blend; mixing cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, and stirring for 40-50min to form mixed slurry;

s2, forming a slope protection brick; pouring the mixed slurry into a mold, introducing steam at 40-45 ℃, maintaining for 48 hours, and then demolding to obtain an initial slope protection brick; and placing the initial slope protection brick in a constant temperature chamber with the temperature of 40-60 ℃ for curing for 2-3h to obtain the slope protection brick.

Preferably, the method further comprises the following steps: in the S1, 3-4 parts of rosin pentaerythritol ester, 12-15 parts of polybutadiene latex and polypropylene glycol diglycidyl ether are mixed and stirred for 30-40min at the temperature of 30-40 ℃, and then mixed with 5-6 parts of polybutylene terephthalate to prepare a blend;

mixing 7-10 parts of epoxy resin and 2-3 parts of 2-aminobenzaldehyde, adding 3-5 wt% of N, N-dimethylbenzylamine as a catalyst, stirring at 90-95 ℃ for 2-3h, continuously heating to 105 ℃ and keeping the temperature for 1-1.5h, and cooling to obtain an epoxy modified polymer;

and then mixing 2-3 parts of epoxy modified polymer and 1-2 parts of 2-vinylpyridine, heating to 50-60 ℃, stirring for 40-50min, finally adding 100-150 parts of cement, the blend, 2-3 parts of silicon carbide, 10-15 parts of fine aggregate, 40-50 parts of water and 1-2 parts of water reducer, mixing, and stirring for 40-50min to form mixed slurry.

To sum up, the application comprises the following beneficial technical effects:

1. when the dispersed phase polybutylene terephthalate is mixed with the continuous phase of the blend of polybutadiene latex and polypropylene glycol diglycidyl ether, a higher environmental static pressure can be generated between phase interfaces during stretching or compression to promote the dispersed phase polybutylene terephthalate to show toughness deformation, thereby achieving the toughening effect; when a crack is generated in the strain, the polybutylene terephthalate stretches across two ends of the crack to generate extension deformation, so that the crack is prevented from expanding and energy is absorbed; after being mixed with components such as cement, silicon carbide, aggregate and the like, the purpose of improving the wear resistance of the slope protection brick is achieved;

2. the rosin pentaerythritol ester has higher compatibility and stability, and the blending of the rosin pentaerythritol ester and the polybutadiene latex can ensure that the polybutadiene latex is more tightly combined with other components in the presence of polypropylene glycol diglycidyl ether, so that the prepared slope protection brick has a compact structure and achieves the aim of enhancing the wear resistance;

3. the epoxy modified polymer obtained by reacting the active group on the 2-aminobenzaldehyde with the epoxy group of the epoxy resin has the effects of improving the impact resistance and further toughening, and is beneficial to improving the wear resistance of the slope protection brick;

4. the 2-vinylpyridine with strong polarity is blended with the epoxy modified polymer, and the obtained product can greatly improve the bonding strength among all components, has obvious toughening effect, and thus assists in improving the wear resistance of the slope protection brick.

Drawings

Fig. 1 is a schematic structural view of the slope protection brick of the present application.

Description of reference numerals: 1. a brick body; 11. a transverse portion; 12. a longitudinal portion; 2. a groove; 3. a triangular groove; 4. an open slot.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

In the present application, the polybutadiene latex is produced by Shandong Moore chemical Co., Ltd; polypropylene glycol diglycidyl ether is produced by seffida chemical ltd, suzhou; polybutylene terephthalate is produced by southern Tongzhou chemical company, Inc., brand: a plectrum; the silicon carbide adopts silicon carbide micro powder produced by Foshan City Source optical grinding material Limited company, the type is as follows: 500# of black silicon carbide, the granularity is 500 meshes; the fine aggregate is obtained by crushing construction waste, and the particle size is less than 5 mm; the water reducing agent is FDN produced by Hubei Jusheng science and technology limited company.

The raw materials used in the following embodiments may be those conventionally commercially available unless otherwise specified.

Examples

As shown in fig. 1, the ecological ramp grass planting slope protection brick disclosed by the application comprises a brick body 1 made of corresponding moulds; the brick body 1 comprises a transverse part 11 and a longitudinal part 12 which are vertically spliced with each other, and grooves 2 are formed on two side walls of the transverse part 11, which are parallel to the longitudinal part 12, and at the corners far away from the longitudinal part 12; the middle part of the side wall of the longitudinal part 12 far away from the transverse part 11 is provided with an open triangular groove 3; an open slot 4 is formed in the middle of the side wall of the transverse part 11, which is far away from the longitudinal part 12, and corresponds to the triangular slot 3; when the brick bodies 1 are spliced with each other, the attractiveness of the connected brick bodies 1 is improved.

Example 1

The application discloses an ecological ramp grass planting slope protection brick and a production process thereof; the utility model provides an ecological ramp grass planting slope protection brick, brick body 1 includes following component: cement, polybutadiene latex, polypropylene glycol diglycidyl ether, polybutylene terephthalate, silicon carbide, fine aggregate and water; the contents of the components are shown in table 1 below.

s1, mixing raw materials; uniformly mixing polybutadiene latex and polypropylene glycol diglycidyl ether, adding polybutylene terephthalate, and stirring at 35 ℃ for 25min to obtain a blend; mixing cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, and stirring for 40min to form mixed slurry;

s2, forming a slope protection brick; pouring the mixed slurry into a mold, introducing steam at 40 ℃, maintaining for 48 hours, and then demolding to obtain an initial slope protection brick; and placing the initial slope protection brick in a constant temperature chamber with the temperature of 40 ℃ for curing for 2h to obtain the slope protection brick.

Example 2

s1, mixing raw materials; uniformly mixing polybutadiene latex and polypropylene glycol diglycidyl ether, adding polybutylene terephthalate, and stirring at 40 ℃ for 30min to obtain a blend; mixing cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, and stirring for 50min to form mixed slurry;

s2, forming a slope protection brick; pouring the mixed slurry into a mold, introducing steam at 45 ℃, maintaining for 48 hours, and then demolding to obtain an initial slope protection brick; and placing the initial slope protection brick in a thermostatic chamber at the temperature of 60 ℃ for curing for 3h to obtain the slope protection brick.

Example 3

s1, mixing raw materials; uniformly mixing polybutadiene latex and polypropylene glycol diglycidyl ether, adding polybutylene terephthalate, and stirring at 36 ℃ for 27min to obtain a blend; mixing cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, and stirring for 45min to form mixed slurry;

s2, forming a slope protection brick; pouring the mixed slurry into a mold, introducing 42 ℃ steam, curing for 48 hours, and then demolding to obtain an initial slope protection brick; and placing the initial slope protection brick in a thermostatic chamber with the temperature of 50 ℃ for curing for 2.5h to obtain the slope protection brick.

Example 4

The difference from the embodiment 1 is that the brick body 1 of the ecological ramp grass planting slope protection brick comprises the following components: cement, polybutadiene latex, polypropylene glycol diglycidyl ether, polybutylene terephthalate, silicon carbide, fine aggregate, water, rosin pentaerythritol ester, epoxy modified polymer and 2-vinylpyridine; the contents of the components are shown in table 1 below.

The preparation method of the epoxy modified polymer comprises the following steps: mixing 7 parts of epoxy resin and 2 parts of 2-aminobenzaldehyde, adding 3 wt% of N, N-dimethylbenzylamine as a catalyst, stirring at 90 ℃ for reaction for 2 hours, continuously heating to 100 ℃, keeping the temperature for 1 hour, and cooling to obtain the epoxy modified polymer.

A production process of ecological ramp grass planting slope protection bricks comprises the following steps of S1:

mixing rosin pentaerythritol ester, polybutadiene latex and polypropylene glycol diglycidyl ether at 30 ℃ and stirring for 30min, then mixing with polybutylene terephthalate, and stirring at 35 ℃ for 25min to obtain a blend;

and mixing the epoxy modified polymer and 2-vinylpyridine, heating to 50 ℃, stirring for 40min, finally adding cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, mixing, and stirring for 40min to form mixed slurry.

Example 5

The difference from the embodiment 2 is that the brick body 1 of the ecological ramp grass planting slope protection brick comprises the following components: cement, polybutadiene latex, polypropylene glycol diglycidyl ether, polybutylene terephthalate, silicon carbide, fine aggregate, water, rosin pentaerythritol ester, epoxy modified polymer and 2-vinylpyridine; the contents of the components are shown in table 1 below.

The preparation method of the epoxy modified polymer comprises the following steps: mixing 10 parts of epoxy resin and 3 parts of 2-aminobenzaldehyde, adding 5 wt% of N, N-dimethylbenzylamine as a catalyst in the epoxy resin, stirring and reacting at 95 ℃ for 3 hours, continuously heating to 105 ℃, keeping the temperature for 1.5 hours, and cooling to obtain the epoxy modified polymer.

mixing rosin pentaerythritol ester, polybutadiene latex and polypropylene glycol diglycidyl ether at 40 ℃ and stirring for 40min, then mixing with polybutylene terephthalate, and stirring at 40 ℃ for 30min to obtain a blend;

and mixing the epoxy modified polymer and 2-vinylpyridine, heating to 60 ℃, stirring for 50min, finally adding cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, mixing, and stirring for 50min to form mixed slurry.

Example 6

The difference from the embodiment 3 is that the brick body 1 of the ecological ramp grass planting slope protection brick comprises the following components: cement, polybutadiene latex, polypropylene glycol diglycidyl ether, polybutylene terephthalate, silicon carbide, fine aggregate, water, rosin pentaerythritol ester, epoxy modified polymer and 2-vinylpyridine; the contents of the components are shown in table 1 below.

The preparation method of the epoxy modified polymer comprises the following steps: mixing 9 parts of epoxy resin and 2 parts of 2-aminobenzaldehyde, adding 4 wt% of N, N-dimethylbenzylamine as a catalyst in the epoxy resin, stirring and reacting at 92 ℃ for 2.5h, continuously heating to 103 ℃, keeping the temperature for 1.2h, and cooling to obtain the epoxy modified polymer.

mixing rosin pentaerythritol ester, polybutadiene latex and polypropylene glycol diglycidyl ether at 35 ℃ and stirring for 35min, then mixing with polybutylene terephthalate, and stirring for 27min at 38 ℃ to obtain a blend;

and mixing the epoxy modified polymer and 2-vinylpyridine, heating to 55 ℃, stirring for 45min, finally adding cement, the blend, silicon carbide, fine aggregate, water and a water reducing agent, mixing, and stirring for 45min to form mixed slurry.

Example 7

The difference from the example 1 is that the raw material of the brick body 1 also comprises rosin pentaerythritol ester, and the content of each component is shown in the following table 2.

Example 8

The difference from example 7 is that rosin pentaerythritol ester was replaced with polyoxyethylene ether and the content of each component is shown in table 2 below.

Example 9

The difference from the example 1 is that the raw material of the brick body 1 further comprises an epoxy modified polymer; the preparation method of the epoxy modified polymer comprises the following steps: mixing 7 parts of epoxy resin and 2 parts of 2-aminobenzaldehyde, adding 3 wt% of N, N-dimethylbenzylamine as a catalyst, stirring at 90 ℃ for reaction for 2 hours, continuously heating to 100 ℃, preserving heat for 1 hour, and cooling.

The contents of the components are shown in the following table 2.

Example 10

The difference from example 9 is that the epoxy-modified polymer was replaced with an epoxy resin, and the contents of the respective components are shown in table 2 below.

Example 11

The difference from example 9 is that 2-aminobenzaldehyde was replaced with glycerol and the contents of the components are shown in table 2 below.

Example 12

The difference from example 9 is that the weight part ratio of the epoxy resin and 2-aminobenzaldehyde is 4:1, and the contents of the respective components are shown in table 2 below.

Example 13

The difference from example 1 is that the raw material of brick 1 further comprises 2-vinylpyridine, and the contents of each component are shown in table 2 below.

Example 14

The difference from example 9 is that the raw material of brick 1 further comprises 2-vinylpyridine, and the contents of each component are shown in Table 2 below.

Example 15

The difference from example 14 is that 2-vinylpyridine was replaced with polyvinyl alcohol and the amounts of the components are shown in Table 2 below.

Comparative example

Comparative example 1

The difference from the example 1 is that the raw materials of the brick body 1 only comprise cement, silicon carbide, fine aggregate, water and water reducing agent, and the contents of the components are shown in the following table 3.

Comparative example 2

The difference from example 1 is that the polybutadiene latex was replaced with polyacrylic acid, and the contents of the respective components are shown in Table 3 below.

Comparative example 3

The difference from example 7 is that the polybutadiene latex was replaced with polyacrylic acid, and the contents of the respective components are shown in Table 3 below.

Comparative example 4

The difference from example 1 is that polypropylene glycol diglycidyl ether was replaced with ethyl acetate, and the contents of the respective components are shown in table 3 below.

Comparative example 5

The difference from example 1 was that polybutylene terephthalate was replaced with calcium carbonate and the contents of the respective components are shown in table 3 below.

TABLE 1 ingredient content tables for examples 1-6

	Example 1	Example 2	Example 3	Example 4	Example 5	Example 6
							Cement	100	150	125	100	150	125
Polybutadiene latex	12	15	14	12	15	14
							Polypropylene glycol diglycidyl ether	6	8	7	6	8	7
Polybutylene terephthalate	5	6	6	5	6	6
							Silicon carbide	2	3	2	2	3	2
Fine aggregate	10	15	13	10	15	13
							Water (W)	40	50	45	40	50	45
Water reducing agent	1	2	1	1	2	1
							Rosin pentaerythritol ester	/	/	/	3	4	4
Epoxy modified polymers	/	/	/	2	3	2
							2-vinylpyridines	/	/	/	1	2	2

TABLE 2 component content tables for examples 7-15

	Example 7	Example 8	Example 9	Example 10	Example 11	Example 12	Example 13	Example 14	Example 15
										Cement	100	100	100	100	100	100	100	100	100
Polybutadiene latex	12	12	12	12	12	12	12	12	12
										Polypropylene glycol diglycidyl ether	6	6	6	6	6	6	6	6	6
Polybutylene terephthalate	5	5	5	5	5	5	5	5	5
										Silicon carbide	2	2	2	2	2	2	2	2	2
Fine aggregate	10	10	10	10	10	10	10	10	10
										Water (W)	40	40	40	40	40	40	40	40	40
Water reducing agent	1	1	1	1	1	1	1	1	1
										Rosin pentaerythritol ester/polyoxyethylene ether	3	3	/	/	/	/	/	/	/
Epoxy modified polymer/epoxy resin	/	/	2	2	2	2	/	2	2
										2-vinylpyridine/polyvinyl alcohol	/	/	/	/	/	/	1	1	1

TABLE 3 ingredient content of comparative examples 1 to 5

	Comparative example 1	Comparative example 2	Comparative example 3	Comparative example 4	Comparative example 5
						Cement	100	100	100	100	100
Polybutadiene latex/polyacrylic acid	/	12	12	12	12
						Polypropylene glycol diglycidyl ether/ethyl acetate	/	6	6	6	6
Polybutylene terephthalate/calcium carbonate	/	5	5	5	5
						Silicon carbide	2	2	2	2	2
Fine aggregate	10	10	10	10	10
						Water (W)	40	40	40	40	40
Water reducing agent	1	1	1	1	1
						Rosin pentaerythritol ester	/	/	3	/	/

Performance test

The slope protection bricks of each example and comparative example were made into test pieces of 50mm × 50mm × 80 mm.

And (3) wear resistance test: wear resistance is characterized by wear rate; the wear rate is tested by adopting a universal friction wear testing machine, and the test conditions are as follows: the test force is 30N, the rotating speed is 250r/min, the test time is 20min, and the calculation formula of the wear rate is as follows: the wear rate is (mass before friction-mass after friction)/mass before friction × 100%; the lower the wear rate, the better the wear resistance, and the test results are shown in table 4 below.

TABLE 4 table of results of performance test of each example and comparative example

	Wear rate (%)
		Example 1	1.52
Example 2	1.37
		Example 3	1.46
Example 4	1.28
		Example 5	1.12
Example 6	1.20
		Example 7	1.45
Example 8	1.50
		Example 9	1.40
Example 10	1.48
		Example 11	1.46
Example 12	1.36
		Example 13	1.49
Example 14	1.34
		Example 15	1.38
Comparative example 1	7.09
		Comparative example 2	4.13
Comparative example 3	3.95
		Comparative example 4	1.56
Comparative example 5	1.59

In summary, the following conclusions can be drawn:

1. according to the example 1 and the examples 9 to 11 in combination with the table 4, it can be known that the epoxy modified polymer specifically prepared in the present application has a relatively significant effect of improving the abrasion resistance of the slope protection brick.

2. According to example 1, examples 9 and 12 and table 4, it can be seen that when the weight ratio of the epoxy resin to the 2-aminobenzaldehyde is 4:1, the obtained epoxy modified polymer has better performance, and is more beneficial to improving the wear resistance of the slope protection brick.

3. According to example 1 and examples 9 and 13 to 15 in combination with table 4, it can be seen that the epoxy modified polymer and 2-vinylpyridine have a synergistic effect, and can improve the abrasion resistance of the slope protection brick.

4. According to example 1 and comparative example 1 and table 4, the slope protection brick prepared by the technical scheme of the application has more excellent wear resistance.

5. According to example 1 and comparative examples 2, 4 and 5, and in combination with table 4, it can be seen that the co-addition of polybutadiene latex, polypropylene glycol diglycidyl ether and polybutylene terephthalate has a synergistic effect on the improvement of the abrasion resistance of the slope protection brick.

6. As can be seen from examples 7 to 8 and comparative example 3 in combination with table 4, the polybutadiene latex and the rosin pentaerythritol ester synergistically improve the abrasion resistance of the slope protection brick.

The present embodiment is only for explaining the present application, and the protection scope of the present application is not limited thereby, and those skilled in the art can make modifications to the present embodiment without inventive contribution as needed after reading the present specification, but all are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides an ecological ramp grass planting slope protection brick, includes the brick body (1), its characterized in that: the brick body (1) comprises the following raw materials in parts by weight:

100-150 parts of cement;

12-15 parts of polybutadiene latex;

6-8 parts of polypropylene glycol diglycidyl ether;

5-6 parts of polybutylene terephthalate;

2-3 parts of silicon carbide;

10-15 parts of fine aggregate;

40-50 parts of water;

1-2 parts of a water reducing agent;

3-4 parts of rosin pentaerythritol ester;

2-3 parts of an epoxy modified polymer;

1-2 parts of 2-vinylpyridine;

the preparation method of the epoxy modified polymer comprises the following steps: mixing 7-10 parts of epoxy resin and 2-3 parts of 2-aminobenzaldehyde, adding 3-5 wt% of N, N-dimethylbenzylamine as a catalyst, stirring at 90-95 ℃ for reaction for 2-3h, continuously heating to 100 ℃ and 105 ℃, preserving heat for 1-1.5h, and cooling.

2. The ecological ramp grass planting slope protection brick according to claim 1, characterized in that: according to the weight portion ratio, the epoxy resin: 2-aminobenzaldehyde =4: 1.

3. The ecological ramp grass planting slope protection brick according to claim 1, characterized in that: the brick body (1) comprises a transverse part (11) and a longitudinal part (12) which are spliced with each other, and grooves (2) are formed in the corners of two side walls of the transverse part (11) and the longitudinal part (12) which are parallel to each other; the middle part of the side wall of the longitudinal part (12) far away from the transverse part (11) is provided with an open triangular groove (3); an opening groove (4) is formed at the position, corresponding to the triangular groove (3), of the side wall, far away from the longitudinal part (12), of the transverse part (11).

4. The production process of the ecological ramp grass planting slope protection brick as claimed in claim 1, characterized by comprising the following steps:

s1, mixing raw materials: mixing 3-4 parts of rosin pentaerythritol ester, 12-15 parts of polybutadiene latex and polypropylene glycol diglycidyl ether at 30-40 ℃ and stirring for 30-40min, and mixing with 5-6 parts of polybutylene terephthalate to prepare a blend; mixing 2-3 parts of epoxy modified polymer and 1-2 parts of 2-vinylpyridine, heating to 50-60 ℃, stirring for 40-50min, finally adding 100-150 parts of cement, the blend, 2-3 parts of silicon carbide, 10-15 parts of fine aggregate, 40-50 parts of water and 1-2 parts of water reducer, mixing, and stirring for 40-50min to form mixed slurry;

s2, forming of slope protection bricks: pouring the mixed slurry into a mold, introducing steam at 40-45 ℃, maintaining for 48 hours, and then demolding to obtain an initial slope protection brick; and placing the initial slope protection brick in a constant temperature chamber with the temperature of 40-60 ℃ for curing for 2-3h to obtain the slope protection brick.