阅读说明：本技术 一种钢渣透水路面砖的施工方法 (Construction method of steel slag permeable pavement brick ) 是由 颜凡 金强 杨刚 王文君 于纵达 梁纾钘 于 2020-12-01 设计创作，主要内容包括：本发明涉及施工方法,特别是涉及一种钢渣透水路面砖的施工方法,至少包括以下步骤：1)调整透水砖铺设边缝至预设宽度和/或使用钢渣透水混凝土填充路面边角；2)通过预埋嵌缝物形成嵌缝和/或通过压印形成压缝；3)使用钢渣砂填充透水砖铺设边缝、嵌缝和/或压缝。本发明第二方面提供一种应用于第一方面所述实施方法的钢渣透水混凝土至少包括以下重量份的组分：钢渣特种集料：4～6,水泥：1,水：0.25～0.35。本发明通过灌入钢渣砂调整接缝距及用不规则边角钢渣透水混凝土消除路面边角的方法,避免了传统路面砖铺筑方法中切割路面砖的工序,有效提高了路面施工效率、降低劳工劳动强度。(The invention relates to a construction method, in particular to a construction method of a steel slag permeable pavement brick, which at least comprises the following steps: 1) adjusting the paving side seams of the water permeable bricks to a preset width and/or filling the corners of the road surface with steel slag water permeable concrete; 2) forming caulking seams by embedding caulking seams and/or forming pressure seams by coining; 3) and filling the water permeable bricks with steel slag sand to lay side seams, caulking and/or pressure seams. The second aspect of the invention provides a steel slag pervious concrete applied to the implementation method of the first aspect, which at least comprises the following components in parts by weight: the steel slag special aggregate: 4-6, cement: 1, water: 0.25 to 0.35. The method of adjusting the joint distance by pouring the steel slag sand and eliminating the road surface corners by using the steel slag permeable concrete with irregular corners avoids the procedure of cutting the pavement bricks in the traditional pavement brick paving method, effectively improves the road surface construction efficiency and reduces the labor intensity of workers.)

1. The construction method of the steel slag permeable pavement brick is characterized by at least comprising the following steps of:

1) adjusting the paving side seams of the water permeable bricks to a preset width and/or filling the corners of the road surface with steel slag water permeable concrete;

2) forming caulking seams by embedding caulking seams and/or forming pressure seams by coining;

3) and filling the water permeable bricks with steel slag sand to lay side seams, caulking and/or pressure seams.

2. The construction method of the steel slag permeable pavement brick according to claim 1, characterized by comprising the following steps: the preset width is 2-4 mm.

3. The construction method of the steel slag permeable pavement brick according to claim 1, characterized by comprising the following steps: the grain size of the steel slag sand is 1-3 mm.

4. The construction method of the steel slag permeable pavement brick according to claim 1, characterized by comprising the following steps: the width of the caulking and the pressure seam is 2-4 mm.

5. The steel slag pervious concrete applicable to the construction method of any one of claims 1 to 4, which is characterized in that: the steel slag pervious concrete at least comprises the following components in parts by weight:

the steel slag special aggregate: 4-6;

cement: 1;

water: 0.25 to 0.35.

6. The steel slag pervious concrete of claim 5, which is characterized in that: the special steel slag aggregate is a granular material with the grain size of 1-3mm, which is processed by converter slag or electric furnace slag.

7. The steel slag pervious concrete of claim 5, which is characterized in that: the cement is PO42.5 or 42.5 grade slag cement.

8. The steel slag pervious concrete of claim 5, which is characterized in that: the steel slag pervious concrete further comprises an additive, and the ratio of the weight parts of the additive to the weight parts of the cement is 1-2: 50.

9. The steel slag pervious concrete of claim 5, which is characterized in that: the steel slag pervious concrete further comprises a pigment, and the ratio of the weight part of the pigment to the weight part of the cement is 1-2: 50.

10. The steel slag pervious concrete of claim 9, characterized in that: the pigment is iron oxide series pigment.

Technical Field

The invention relates to a construction method, in particular to a construction method of a steel slag permeable pavement brick.

Background

The steel slag is a large amount of solid waste generated in steel making, accounts for about 15% of the steel yield, and because the steel slag has the characteristics of instability, difficult grinding and the like, the utilization rate of high added values of the steel slag at home and abroad is not high, and more than 90% of the steel slag is used as roadbed materials, cement raw materials and other low added values. After several decades of deposits, the steel slag resource utilization approach of 'powder, sand, brick and soil' is provided by the steel slag metallurgy technology, wherein the steel slag permeable pavement brick is one of the most important utilization products of high value-added resource utilization of steel slag, has been applied to a large number of projects, but has the following three problems in specific engineering practice:

(1) a large amount of irregular paving bricks are needed in the construction of road surface corners, the common construction method is to cut brick products, but the steel slag permeable pavement bricks have high strength and good wear resistance, and the 28-day compressive strength grade can reach above Cc40, so the cutting difficulty is very high, the construction efficiency is very low, and the labor intensity of workers is very high.

(2) The cutting of the steel slag permeable brick can cause the noise and dust raising of a construction site to be large, and the cutting powder is easy to block and pollute a permeable pavement.

(3) The 'abutted seam' cutting and paving of the steel slag permeable brick is difficult to 'tightly joint', and the whole stability, the comfort of the pavement and the service life of the road are easily affected by local 'looseness'.

Disclosure of Invention

In view of the above disadvantages of the prior art, the present invention is directed to a method for constructing a water-permeable steel slag pavement brick, which solves the problems of the prior art.

In order to achieve the above and other related objects, a first aspect of the present invention provides a method for constructing a steel slag permeable pavement brick, which at least comprises the following steps:

1) adjusting the paving side seams of the water permeable bricks to a preset width and/or filling the corners of the road surface with steel slag water permeable concrete;

2) forming caulking seams by embedding caulking seams and/or forming pressure seams by coining;

3) and filling the water permeable bricks with steel slag sand to lay side seams, caulking and/or pressure seams.

The second aspect of the invention provides a steel slag pervious concrete applied to the implementation method of the first aspect, which at least comprises the following components in parts by weight:

the steel slag special aggregate: 4-6;

cement: 1;

water: 0.25 to 0.35.

Optionally, the steel slag pervious concrete further comprises an additive, and the ratio of the weight part of the additive to the weight part of the cement is 1-2: 50.

Optionally, the steel slag pervious concrete further comprises a pigment, and the ratio of the weight part of the pigment to the weight part of the cement is 1-2: 50.

As described above, the present invention has the following advantageous effects:

when the steel slag is used as the aggregate to manufacture the brick product, because a small amount of slag iron exists in the aggregate, the cutting difficulty of the steel slag concrete brick product is larger, the method for adjusting the joint distance by pouring steel slag sand and eliminating the road surface corner by using the steel slag pervious concrete with irregular corners avoids the process of cutting the pavement brick in the traditional pavement brick paving method, effectively improves the road surface construction efficiency and reduces the labor intensity.

Compared with the way of filling yellow sand, cement mortar and the like adopted in the general construction method of the pavement bricks, the method for filling the corners ensures that the overall pavement structure of the pavement bricks is more stable, reliable and not easy to loosen; in addition, the dry and hard steel slag concrete which is the same as the brick product is adopted, so that the appearance integrity and the aesthetic property of the pavement are better.

Drawings

Figure 1 shows a schematic view of the process of cutting a tile article using a stone cutter to treat irregular corners.

FIG. 2 is a schematic view showing the treatment of the water-permeable concrete using steel slag with irregular edges according to the present invention.

Description of the element reference numerals

1 Water permeable brick

2 irregular permeable cutting brick

3 small side seam

4 large side seam

5 Preset seam

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.

The invention provides a construction method of a steel slag permeable pavement brick, which at least comprises the following steps:

1) adjusting the paving side seams of the water permeable bricks to a preset width and/or filling the corners of the road surface with steel slag water permeable concrete;

2) forming caulking seams by embedding caulking seams and/or forming pressure seams by coining;

3) and filling the water permeable bricks with steel slag sand to lay side seams, caulking and/or pressure seams.

The invention provides a construction method of a steel slag permeable pavement brick,

in the step 1), adjusting the paving side seams of the water permeable bricks to a preset width and/or filling the corners of the road surface with steel slag water permeable concrete. In the actual operation process, the width of the side seam for paving the water permeable bricks is 2-4mm, when the width of the side seam for paving the water permeable bricks is not more than 20mm, the width of the gap between every two water permeable bricks can be manually adjusted to make up, only a small amount of gap width is allowed to be 4-5 mm during adjustment, and the width of other gaps is not more than 5 mm. When the side seam is laid to the brick that permeates water and is greater than 20mm, add and spread the brick that permeates water and spread and fill the side seam, when the brick that permeates water is laid and is not enough to add and spread whole brick to the side seam that the roadside formation, be greater than 20mm promptly and can't add when laying whole brick that permeates water, gap to the corner on road surface between every brick that permeates water of accessible manual adjustment, can use the slag concrete that permeates water that prepares in advance to fill, and avoid cutting whole brick and remove to fill irregular side seam.

In step 2), a caulking seam is formed by pre-embedding the caulking compound and/or a caulking seam is formed by stamping. When concrete is paved, caulking materials (elastic foam materials) are pre-embedded, and the concrete is taken out after being solidified to form caulking, so that the internal expansion pressure of the concrete can be released. After the concrete is paved, a rigid material with the diameter of 2-4mm is lightly pressed along the joint direction of the paved product to form a pressure joint.

In the step 3), the prepared steel slag sand is filled into the side seams, the caulking seams and/or the pressure seams of the water permeable bricks.

In one embodiment, the predetermined width is 2-4 mm.

In one embodiment, the width of the caulking and the pressing seam is 2-4 mm.

In this embodiment, the width of the caulking and the caulking is similar to the width of the side seam of the water permeable brick, so as to maintain the consistency and the beauty of the seam width, and the width of the caulking and the caulking is selected by the operator according to the width of the side seam of the water permeable brick, for example, the width of the caulking and the caulking may be 2-3mm or 3-4 mm.

In one embodiment, the steel slag sand has a particle size of 1-3 mm.

Preferably, the steel slag sand has the grain size of 1-2mm, the preset width of only 2-4mm, the steel slag sand has small grain size, is convenient to fill and has better filling effect.

The second aspect of the invention provides a steel slag pervious concrete applied to the implementation method of the first aspect, which at least comprises the following components in parts by weight:

the steel slag special aggregate: 4-6;

cement: 1;

water: 0.25 to 0.35;

in the actual use process, implementers select the weight parts of the components in the steel slag permeable concrete according to requirements, for example, the weight parts of the components can be steel slag special aggregate: cement: water is (4-5): 1: (0.25-0.35), (5-6): 1: (0.25-0.35), (4-6): 1: (0.25-0.3) or (4-6): 1: (0.3-0.35).

Preferably, the steel slag permeable concrete comprises the following components in parts by weight: cement: water is (5-6): 1: (0.25-0.35), the requirements on mechanical property and water permeability are met, the cement consumption is relatively small when the ash collection ratio is larger, and the cost is saved.

In one embodiment, the steel slag special aggregate is a granular material with the grain size of 1-3mm processed from converter slag or electric furnace slag.

Preferably, the particle size range of the steel slag special aggregate is the same as that of the water permeable brick. Is beneficial to keeping the integrity of the pavement.

In this embodiment, the practitioner selects the particle size range of the steel slag special aggregate according to the particle size range of the water permeable brick, for example, the particle size range may be 1-2mm or 2-3 mm.

Preferably, the cement is a PO42.5 or 42.5 grade slag cement.

In one embodiment, the steel slag pervious concrete further comprises an additive, and the ratio of the weight part of the additive to the weight part of the cement is 2-4.

The ratio of the parts by weight of the admixture to the parts by weight of the cement is selected by an operator according to the requirement, for example, the ratio of the parts by weight of the admixture to the parts by weight of the cement may be 1 to 1.5:50 or 1.5 to 2: 50.

Preferably, the additive is a polycarboxylic acid high-efficiency water reducing agent or a special additive for pervious concrete. The admixture can be used for improving the compressive strength, the water permeability, the saltpetering prevention, the workability and the water retention of the cement.

In this embodiment, the admixture specially used for pervious concrete is an admixture which is sold in the market conventionally and specially used for pervious concrete of type IY-C03, which is produced by Shandongjia landscape science and technology Limited

In one embodiment, the steel slag pervious concrete further comprises a pigment, and the ratio of the weight part of the pigment to the weight part of the cement is 2-4.

The ratio of the weight part of the pigment to the weight part of the cement is selected by an operator according to requirements, for example, the ratio of the weight part of the pigment to the weight part of the cement can be 1-1.5: 50 or 1.5-2: 50.

Preferably, the pigment is an iron oxide series pigment. The iron oxide series pigments have many colors, wide color spectrum, high covering power and strong tinting strength, mainly comprise 3 types of red, yellow and black, and can also obtain the pigment colors of series of color spectrums of orange, brown, green and the like through preparation. The color of the steel slag permeable concrete filled road surface corner part is consistent with that of the steel slag permeable pavement brick so as to maintain the integrity of the road surface.

Example 1

As shown in fig. 1, the method for paving irregular corners and trimming edges of the traditional water permeable bricks comprises the following steps:

1) when the permeable bricks 1 are laid on the roadside to form gaps of not more than 20mm in the typesetting process, the width of the seams among the permeable bricks 1 is properly adjusted to make up, and the half bricks and the bricks smaller than 1/3 are cut and laid by a portable stone cutter to form irregular permeable cut bricks 2.

2) The line-shaped or herringbone paved road surface, and the pavement bricks at the corners can be paved by adopting special pavement bricks at the end parts (bent angles) or cut permeable bricks 1.

Example 2

As shown in FIG. 2, the method for paving irregular corners and trimming of the pavement bricks comprises the following steps:

the steel slag sand (1-3mm) is poured to adjust the joint distance and the steel slag permeable concrete with irregular corners is used for filling, the irregular corners generated when the pavement bricks are paved to the roadside are processed, and embedded joint materials can be embedded or the embedded (pressed) joints can be kept consistent with the brick joints in a reinforcing steel bar impressing mode before the surface layer of the filled steel slag permeable concrete is not solidified, so that a better apparent effect is obtained. The method comprises the following specific steps:

1) cleaning the surface of an earth subgrade, leveling and tamping, and checking the elevation and the flatness of the earth subgrade and a cushion layer;

2) pouring the mixed cement-stabilized macadam mixture into a construction site, paving by adopting a construction process of forklift paving and manual leveling assistance, and completing paving and rolling at one time before final setting of the mixture;

3) directly placing the mixed base layer concrete mixture on the rolled cement-stabilized steel slag macadam, paving, leveling and rolling to obtain a steel slag permeable concrete base layer;

4) pouring steel slag sand (1-3mm) on a structural layer for leveling, manually spreading the steel slag sand to the thickness of 20-30mm by using a shovel, controlling the elevation by using a level meter during spreading, manually spreading the steel slag sand by using a scraping ruler for leveling, and facilitating the laying of the face brick.

5) According to a planar design drawing, a reference point for paving the face bricks is set at the edge of the road edge stone, and two mutually vertical reference lines are determined along the road edge stone by taking the reference point as the reference point, so that the paved water permeable bricks are arranged orderly. The permeable bricks should be laid from the edges, people should stand on the product bricks which are just laid to continue laying, the product bricks should be checked one by one during laying, no corner damage and no adhesive are ensured, the product bricks should be laid from the outer side of the main road to the inner side of the sidewalk, and the irregular brick products should be laid from the inner side of the sidewalk after being collected. The width of the joint of the water permeable brick is 2-4mm, and gaps can be generated when the water permeable brick is paved on the roadside. When the gap is not more than 20mm, the gap can be compensated by properly adjusting the width of the seam between the water permeable bricks, for example, a small side seam 3 shown in figure 2, only a small amount of seam width is allowed to be 4mm-5 mm during adjustment, and any seam width is not more than 5 mm; when the roadside gap is too large, as shown in fig. 2, the edge of the road surface can be filled with irregular edge steel slag permeable concrete which is the same as the paved permeable brick, and before the surface layer of the filled steel slag permeable concrete is not solidified, caulking materials are pre-embedded or the embedding (pressing) gap is kept consistent with the brick gap in a reinforcing steel bar stamping mode, so that the formed embedding (pressing) gap is a preset gap 5 shown in fig. 2.

6) The water permeable concrete made of the steel slag with irregular corners comprises the following components in percentage by weight:

the steel slag special aggregate: cement: water (4-6): 1: (0.25 to 0.35)

The special steel slag aggregate is a granular material which is processed from converter slag or electric furnace slag and has a certain grading interval, and the specific grain diameter range is consistent with the grain diameter range of the paved steel slag permeable brick so as to keep the integrity of the pavement.

The cement is PO42.5 or 42.5 grade slag cement

The dosage of the additive is 2-4% of the dosage of the cement, and specifically is a polycarboxylic acid high-efficiency water reducing agent or a special permeable concrete additive;

the pigment is 2-4% of the cement, specifically is an iron oxide pigment, and the color of the pigment is kept consistent with that of the steel slag permeable pavement brick so as to keep the integrity of the pavement.

7) Pouring steel slag sand with the thickness of 1-3mm into gaps of the water permeable bricks, flushing the steel slag sand overflowing from the gaps with high-pressure water, and manually cleaning the surfaces with a broom while flushing so as to fill the gaps and clean the surfaces.

8) After the surface of the laid product brick is dried, a finish paint protective layer is sprayed, and effective finished product protective measures such as enclosure sealing and the like are adopted.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.