Pervious concrete specialized additive for water purification
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of permeable concrete and water purification, applied in the field of concrete additives, can solve the problems of not purifying water quality and vegetation, achieve the effect of adjusting microclimate and urban environment, maintaining water level and ecological balance, and beautifying urban environment
Inactive Publication Date: 2017-09-05
SHANGHAI LYUYUAN ECOLOGICAL CONCRETE CO LTD
View PDF9 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The performance indicators of the permeable concrete prepared by the domestic prior art all play the role of water permeability and compression resistance to a certain extent, but they do not play the role of purifying water quality and vegetation.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
[0040] In each of the above embodiments, because the additive of the present invention is also mixed with carbon black, activated carbon and lignocellulose, it can absorb toxic and harmful substances in water.
[0041] At the same time, the present invention also provides a method for making a special additive for permeable concrete for purifying water, which specifically includes the following steps:
[0042] 1) Stir 21% acrylic acid and 21.5% methacrylic acid;
[0043] 2) After the above 1) mixture is stirred evenly, add 11% polyoxyethylene allyl ester and stir;
[0044] 3) Take 12.5% ammonium persulfate as an initiator, add it to the mixture of the above 2), and stir evenly;
[0045] 4) Take 11% carbon black and 9% activated carbon and stir for 10 minutes;
[0046] 5) Add ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a pervious concrete specialized additive for water purification. The pervious concrete specialized additive is prepared from, by weight, 20-22% of acrylic acid (AA), 21-22% of methacrylic acid (MAS), 10-12% of polyoxyethylene propylene ester (PA), 12-13% of ammonium persulfate (APS), 10-13% of carbon black, 8-12% of activated carbon and 10-15% of lignocellulose. The pervious concrete specialized additive has certain compressive strength, and can bear shear and pressure stress of road vehicles, pedestrians and the like on the road surface; certain pervious and breathable properties are achieved, moisture can be rapidly infiltrated into underground in rainy days without water accumulating and reflecting; in addition, sewage infiltrated into underground can be purified, requirements in building a 'sponge city' of natural accumulation, natural infiltration and natural purification are greatly conformed, water resources are saved, and urban ecological environment is protected and improved; therefore, a social effect and ecological effect are generated with the application of the pervious concrete specialized additive.
Description
technical field [0001] The invention belongs to the technical field of concrete additives, in particular to a special additive for permeable concrete for purifying water. Background technique [0002] China's industry has developed rapidly for decades, and the industrial economy has always occupied the primary position in the overall pattern of social development. However, due to the extensive nature of the economic development mode, the industrial structure is heavy and low-level, a large amount of pollutants are discharged, and the environmental pollution is very serious. In most areas, events such as "acid rain" have occurred, and the heavy metal content in the rainwater exceeds the standard, seriously polluting groundwater sources. It affects the development of surface plants and poses a serious threat to the natural ecological environment. And in recent years, the domestic urbanization process is too fast, a large number of buildings occupy farmland, and the cement s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more