A sidewalk and its construction technology
A sidewalk, high-strength technology, applied in the directions of roads, roads, pavements, etc., can solve the problems of poor durability, large porosity, and high water absorption, and achieve the effect of improving strength and use range and improving strength.
Active Publication Date: 2021-09-24
浙江凯业市政园林建设有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, due to the characteristics of large crushing index, high water absorption, large porosity, and low apparent density of recycled aggregates, recycled concrete bricks have low strength and poor durability, so they are often used in low-strength requirements. The scope of use of recycled concrete bricks
Method used
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Experimental program
Comparison scheme
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Embodiment 1
[0096] The difference between embodiments 10-13 and embodiment 1 is that the strengthening agent comprises the following raw materials in weight percent:
[0097]
[0098] The difference between Embodiment 14-17 and Embodiment 1 is that the reinforcing filler comprises the following raw materials in weight percent:
[0099]
[0100]
[0101] The difference between Embodiment 18-21 and Embodiment 1 is that the hydrophobic agent includes the following raw materials in weight percentage:
[0102]
[0103] The difference between Embodiment 22-25 and Embodiment 1 is that the reinforcing fiber comprises the following raw materials in weight percent:
[0104]
[0105] The difference between embodiment 26-29 and embodiment 1 is that the active admixture comprises the following raw materials in weight percent:
[0106]
[0107] The difference between Examples 30-33 and Example 1 is that the soaking time of the recycled aggregate in the reinforcing agent in step 2 is ...
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Abstract
The invention relates to a sidewalk and its construction technology, and relates to the technical field of building construction, which includes high-strength concrete bricks, M10 cement mortar, C20 concrete cushion, crushed stone cushion and pond slag from top to bottom; Strength concrete bricks are made of the following raw materials by weight: 180-200 parts of ordinary portland cement; 1100-1200 parts of coarse aggregate; 160-180 parts of active admixture; 30-50 parts of rubber powder; 20-40 parts of reinforcing fiber 10-30 parts of polyvinyl alcohol; 4-8 parts of polycarboxylate water reducer; 180-220 parts of water; the coarse aggregate includes 20-40% natural gravel and 60-80% modified regeneration aggregate. By modifying the recycled aggregate, the strength of the recycled aggregate is improved, thereby improving the strength and application range of the recycled concrete.
Description
technical field [0001] The invention relates to the technical field of building construction, in particular to a sidewalk and its construction technology. Background technique [0002] With the rapid development of my country's economy, the demolition of old and new infrastructure has produced a large number of waste building materials, among which waste concrete accounts for about 30% of construction waste, except for a very small number of low-level materials that are recycled for non-load-bearing structures such as subgrades and bases. Most of them are landfilled or piled up, which pollutes the environment and wastes resources. [0003] The existing solution is to crush, clean and classify the construction waste, and mix it with a certain proportion and grade to make concrete bricks, which can realize the reuse of construction waste and significantly save costs. However, due to the characteristics of large crushing index, high water absorption, large porosity, and low app...
Claims
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IPC IPC(8): E01C5/06C04B28/04E01C15/00
CPCC04B28/04C04B2111/0075C04B2201/50E01C5/065E01C15/00C04B14/02C04B18/16C04B14/022C04B22/06C04B14/28C04B22/00C04B24/32C04B18/08C04B18/141C04B18/146C04B18/22C04B16/0633C04B16/0641C04B24/283C04B24/2623C04B2103/302
Inventor 卓利亚卓利明陈洪良邵云霞
Owner 浙江凯业市政园林建设有限公司