CN-121976440-A - Adjustable storage type structural water permeable brick positioned by silver collar-shaped connecting pins and preparation method thereof

CN121976440ACN 121976440 ACN121976440 ACN 121976440ACN-121976440-A

Abstract

The invention relates to a storage-regulated type structural water permeable brick positioned by a silver collar-shaped connecting pin and a preparation method thereof, belonging to the technical field of municipal engineering and landscape pavement. The water permeable brick comprises a water permeable brick body and silver collar-shaped connecting pins, wherein the water permeable brick body is of a square structure and is of an inverted trapezoid shape with a large upper part and a small lower part, silver collar-shaped grooves are respectively formed in the four opposite side walls of the water permeable brick body, the silver collar-shaped connecting pins are in a girdling shape, two ends of each silver collar-shaped connecting pin are bent upwards and are bundled in the middle part, the silver collar-shaped connecting pins are adaptively embedded into the silver collar-shaped grooves in the four opposite side walls of the water permeable brick body, the silver collar-shaped connecting pins are used for realizing stable splicing of adjacent water permeable brick bodies and accurately controlling the width of brick joints between the adjacent water permeable brick bodies, and after the adjacent water permeable brick bodies are spliced, the brick joints form crisscrossed trapezoid storage spaces with narrow upper parts and wide lower parts. The invention can effectively solve the problems of reduced water permeability, higher blockage sensitivity, beautiful landscapes and the like in the prior art.

Inventors

MAO KUN
LI JUNQI
XU ZONGWU
CUI KUN
LIU DAICHEN
WANG ZHENG
LI TING

Assignees

北京建筑大学
北京北建大建筑设计研究院有限公司

Dates

Publication Date: 20260505
Application Date: 20260302

Claims (10)

1. The adjustable storage type structural water permeable brick positioned by the silver collar-shaped connecting pin is characterized by comprising a water permeable brick body (1) and the silver collar-shaped connecting pin (3); the water permeable brick body (1) adopts a PC stone-like precast concrete brick, is of a square structure and has a cross section of an inverted trapezoid with a large upper part and a small lower part, and silver collar-shaped grooves (2) are respectively formed in the four opposite side walls of the water permeable brick body (1); The silver collar-shaped connecting pin (3) is made of PC stone-like precast concrete bricks and is in a girdle shape, two ends of the silver collar-shaped connecting pin are upturned and the middle part of the silver collar-shaped connecting pin is bunched, the silver collar-shaped connecting pin (3) is adaptively embedded into the silver collar-shaped grooves (2) on the four opposite side walls of the water permeable brick body (1), and the silver collar-shaped connecting pin is used for realizing stable splicing of adjacent water permeable brick bodies (1) and accurately controlling the width of brick joints (4) between the adjacent water permeable brick bodies (1); adjacent brick body (1) concatenation back, brick seam (4) form crisscross and narrow trapezoidal regulation space (5) of width down, trapezoidal regulation space (5) are as rainwater short time lag storage space, make rainwater after brick seam (4) get into can stay in trapezoidal regulation space (5) for a short time and permeate to the basic unit.
2. The storage-regulated water permeable brick with the silver collar-shaped connecting pin according to claim 1 is characterized in that the inner yield of the bottom of the water permeable brick body (1) relative to the top is 30mm, the width of the top of a brick joint (4) is 10mm, the upper bottom length of the trapezoid storage regulating space (5) is 10mm, the lower bottom length is 70mm, and the height is 55mm.
3. The storage type construction water permeable brick positioned by the silver collar-shaped connecting pin according to claim 1, wherein the specification of the water permeable brick body (1) is selected from any one or more of 300X 70mm, 600X 70mm and 600X 300X 70mm in length X width X height, so as to adapt to different road grades, landscape requirements and pavement modulus requirements.
4. The adjustable storage type construction water permeable brick positioned by the silver collar-shaped connecting pin according to claim 1, wherein the PC stone-like precast concrete brick has compressive strength not less than C30, wear resistance meeting the standard requirements of GB/T25993-2010 water permeable pavement bricks and water permeable pavement boards, and freezing resistance meeting the requirements that no obvious damage exists and strength loss rate is not more than 15% after 25 times of freezing and thawing cycles at-20 ℃ to 20 ℃.
5. The adjustable water permeable brick with the silver collar-shaped connecting pin positioning structure according to claim 1, wherein the silver collar-shaped connecting pin (3) is exposed or sunken or flush on the surface of the water permeable brick body (1) after paving, so that a unique landscape effect is formed, and the corset shape of the brick gives a 'financial gathering and leakless' cultural meaning.
6. The adjustable water permeable brick with the structure positioned by the silver collar-shaped connecting pin according to claim 5, wherein the surface of the water permeable brick body (1) is subjected to stone imitation treatment.
7. The adjustable storage type structural water permeable brick positioned by the silver collar-shaped connecting pin according to claim 1 is characterized in that the silver collar-shaped connecting pin (3) has self-locking and limiting functions, and the disconnection-preventing fixation of the adjacent water permeable brick bodies (1) is realized through a structure with two upturned ends and a convergent middle part.
8. The storage-regulated type constructed water permeable brick positioned by the silver collar-shaped connecting pins is characterized in that the length of the connecting pins (3) along the extending direction of the side walls of the water permeable brick body (1) is 100-120mm, the height of the silver collar-shaped connecting pins (3) is 70mm, the joint of two ends of the silver collar-shaped connecting pins (3) and the grooves is 8-10mm in maximum width of corresponding brick joint control dimension, the minimum width of the silver collar-shaped connecting pins (3) at the middle converging position is 30-40mm, the middle converging position of the silver collar-shaped connecting pins (3) is a double-symmetrical inward concave arc surface, the curvature radius is 15-20mm, the upward-warping functional curved surfaces at two ends of the silver collar-shaped connecting pins (3) are double-symmetrical outward-convex arc curved surfaces, the curvature radius is 90-100mm, and the upward-warping section length along the length direction of the connecting pins (3) is 10-12mm.
9. The adjustable storage type construction water permeable brick positioned by the silver collar-shaped connecting pin according to claim 1 is characterized by being prepared from the following raw materials, by mass, 45-55 parts of recycled building aggregate, 3-8 parts of modified straw fiber, 10-18 parts of waste glass micro powder, 12-20 parts of composite cementing material, 5-10 parts of slag powder, 1-3 parts of water permeability regulator and 6-10 parts of water; the composite cementing material is formed by mixing ordinary silicate cement, sulphoaluminate cement and silica fume according to a mass ratio of 6:3:1, the water permeability regulator is formed by mixing zeolite powder and bentonite according to a mass ratio of 2:1, the recycled building aggregate is particles obtained by crushing and screening after the building is dismantled, the particle size is 2-8mm, the mud content is less than or equal to 0.3% and the water content is less than or equal to 0.2% based on the total mass of the recycled building aggregate, the modified straw fiber is prepared by crushing and alkaline liquor soaking the wheat straw or the corn straw, the length is 0.5-2mm, the water content is less than or equal to 0.5% after modification treatment, the waste glass micropowder is prepared by crushing and grinding waste flat glass, the particle size is 0.1-0.5mm, no impurity is contained, the light transmittance is less than or equal to 10%, the slag powder is prepared by grinding blast furnace slag, the specific surface area is 350-450m < 2 >/kg, the free calcium content is 1.2%, the 28d compressive strength of the water permeability brick is more than or equal to 30MPa, the water permeability coefficient is more than or equal to 3.5mm/s, the aperture is more than or equal to 22% -15 years old.
10. A method for preparing a water permeable brick with a storage regulation type structure positioned by a silver collar-shaped connecting pin according to any one of claims 1 to 9, which is characterized by comprising the following steps: s1, raw material pretreatment, namely respectively drying recycled building aggregate, waste glass micro powder and slag powder until the water content is less than or equal to 0.2 percent for standby; S2, mixing and stirring, namely firstly, putting the recycled building aggregate, the waste glass micro powder, the slag powder, the composite cementing material and the water permeability regulator into stirring equipment, and carrying out dry stirring for 3-5min until the materials are uniformly mixed, and then adding the modified straw fibers and water, and carrying out wet stirring for 8-12min until the materials are uniform and loose; s3, molding, namely putting the mixed materials into a mold, and obtaining a green brick by adopting a vibration press molding mode, wherein the pressure is 180-230KN, and the molding time is 2-3 min; s4, curing, namely placing the green bricks into a curing kiln, curing for 22-24 hours at the temperature of 20-25 ℃ and the humidity of 65-75%, and naturally curing for 7-10 days to obtain the finished water permeable bricks.

Description

Adjustable storage type structural water permeable brick positioned by silver collar-shaped connecting pins and preparation method thereof Technical Field The invention relates to a water permeable brick, in particular to a storage-regulated water permeable brick with a silver collar-shaped connecting pin positioned and a preparation method thereof, belonging to the technical field of municipal engineering and landscape pavement. Background Along with the acceleration of the urban process, the traditional pavement bricks have defects in drainage and water permeability, rainwater is difficult to infiltrate down in time, accumulated water is easy to form on the ground surface, traffic safety and pedestrian traffic are affected, and the burden of an urban drainage system is increased. In order to solve the problems, the water permeable bricks are gradually and widely applied, rainwater infiltration is realized through the pore or brick joint structure in the brick body, urban waterlogging pressure is effectively relieved, and the use performance of the road is improved. However, the conventional water permeable brick is usually fixed by sand stone or cement base layer in the paving process, the width of brick joints is difficult to accurately control, and the condition that the gaps are too large or too small easily occurs, so that the water permeable effect is influenced. Meanwhile, part of the fixing structure is exposed on the surface of the brick body, so that the overall attractiveness is affected, and the paving integrity and durability are reduced. In addition, the traditional water permeable brick adopts a vertical side wall structure, the space form of the brick joint is single, once the surface layer gap is blocked by dust, the overall water permeable capacity can be obviously reduced, and the blocking sensitivity is higher. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a storage-regulated type structural water permeable brick positioned by a silver collar-shaped connecting pin and a preparation method thereof, which are used for solving the problems of reduced water permeable capacity, higher blocking sensitivity, attractive landscapes and the like in the prior art. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: A storage-regulated type construction water permeable brick positioned by a silver collar-shaped connecting pin comprises a water permeable brick body and the silver collar-shaped connecting pin; the permeable brick body adopts a PC stone-like precast concrete brick, is of a square structure and has an inverted trapezoid cross section with a large upper part and a small lower part, and silver collar type grooves are respectively formed in the four opposite side walls of the permeable brick body; The silver collar-shaped connecting pins are made of PC stone-like precast concrete bricks and are in a girdle shape, two ends of each silver collar-shaped connecting pin are upturned and the middle part of each silver collar-shaped connecting pin is bunched, and the silver collar-shaped connecting pins are adaptively embedded into the silver collar-shaped grooves on the four opposite side walls of the water permeable brick body and are used for realizing stable splicing of the adjacent water permeable brick bodies and accurately controlling the widths of brick joints between the adjacent water permeable brick bodies; Adjacent after the water permeable brick body is spliced, the brick seams form crisscross trapezoidal regulation and storage spaces with narrow upper part and wide lower part, and the trapezoidal regulation and storage spaces are used as short-time rainwater storage spaces, so that rainwater can stay in the trapezoidal regulation and storage spaces for a short time and permeate into a base layer after entering through the brick seams. Further, the inner yield of the bottom of the water permeable brick body relative to the top is 30mm, the width of the top of the brick joint is 10mm, the upper bottom length of the trapezoid storage space is 10mm, the lower bottom length is 70mm, and the height is 55mm. Further, the specification of the water permeable brick body is selected from any one or more of 300×300×70mm in length×width×height, 600×600×70mm and 600×300×70mm so as to adapt to different road grades, landscape requirements and pavement modulus requirements. Further, the PC imitation stone precast concrete brick has compressive strength not less than C30, wear resistance meeting the standard requirements of GB/T25993-2010 permeable pavement bricks and permeable pavement slabs, and freezing resistance meeting the requirements that no obvious damage exists and strength loss rate is not more than 15% after 25 times of freezing and thawing cycles at-20 ℃ to 20 ℃. Further, after the silver collar-shaped connecting pins are paved, the silver collar-shaped connecting pins are exposed or sunken or flu