阅读说明：本技术 一种建筑改造降低碳排放的施工方法 (Construction method for reducing carbon emission in building reconstruction ) 是由 季秀柏 于 2019-12-01 设计创作，主要内容包括：本发明公开了一种建筑改造降低碳排放的施工方法,包括以下步骤：步骤一,搭棚：将施工环境进行搭棚,搭棚采用塑料薄膜将施工环境进行封闭,施工工人在搭棚内进行工作；步骤二,沥青的摊铺：将配制好的沥青摊铺到建筑房顶,摊铺厚度为1-5cm,然后采用碾压机进行碾压处理。本发明先采用搭棚处理,目的是使建筑改造中处于封闭的环境,从而便于对产生的二氧化碳进行聚集,不进行封闭,产生的二氧化碳直接进入到大气中很难重新回收处理,封闭的棚内采用碳酸氢钠、碳酸钙、去离子水溶液进行喷洒,从而对二氧化碳进行吸收,吸收的溶液落到保护膜上,保护膜采用氟树脂制备,目的是具有很强的耐腐性能,可起到保护沥青效果。(The invention discloses a construction method for reducing carbon emission in building reconstruction, which comprises the following steps: step one, erecting a shed: building a shed in the construction environment, wherein the shed is formed by adopting a plastic film to seal the construction environment, and construction workers work in the shed; step two, paving asphalt: and (3) paving the prepared asphalt on the roof of the building, wherein the paving thickness is 1-5cm, and then, carrying out rolling treatment by adopting a rolling machine. The invention adopts the shed building treatment firstly, aims to ensure that the building is in a closed environment in the reconstruction process, thereby facilitating the gathering of the generated carbon dioxide, not closing, leading the generated carbon dioxide to directly enter the atmosphere and be difficult to recover and treat again, adopts the solution of sodium bicarbonate, calcium carbonate and deionized water to spray in the closed shed, thereby absorbing the carbon dioxide, leading the absorbed solution to fall on the protective film, preparing the protective film by adopting the fluororesin, aiming at having strong corrosion resistance and playing a role in protecting the asphalt.)

1. A construction method for reducing carbon emission in building reconstruction is characterized by comprising the following steps:

step one, erecting a shed: building a shed in the construction environment, wherein the shed is formed by adopting a plastic film to seal the construction environment, and construction workers work in the shed;

step two, paving asphalt: spreading the prepared asphalt on the roof of a building with the spreading thickness of 1-5cm, and then carrying out rolling treatment by using a rolling machine with the rolling pressure of 10-20 MPa;

step three, pretreatment of carbon dioxide absorption: after the rolled asphalt is dried and does not have viscosity, a layer of protective film is laid on the asphalt, and the protective film is compacted;

step four, primary treatment: spraying aqueous solution of sodium bicarbonate, calcium carbonate and deionized water according to the weight ratio of 3 (4-6) to 6-9, wherein the spraying speed is 0.1-2 g/s;

step five, post-treatment: collecting and stacking the protective films, washing, placing microalgae in a closed environment with a shed for photolysis for 5-10 days, and finally collecting the protective films.

2. The construction method for reducing carbon emission in building reconstruction as claimed in claim 1, wherein the plastic film is obtained by extruding phenolic novolac resin, silica and activated carbon in a weight ratio of (6-9): 1-3):1 in a twin-screw extruder.

3. The construction method for reducing carbon emission in building modification according to claim 2, wherein the phenol novolac resin, the silica and the activated carbon are mixed according to a weight ratio of 7:2: 1.

4. The construction method for reducing carbon emission in building modification according to claim 1, wherein the protective film is prepared from a fluororesin.

5. The construction method for reducing carbon emission in building reconstruction as claimed in claim 1, wherein the first treatment in the fourth step is a gamma ray combined plasma irradiation treatment.

6. The construction method for reducing carbon emission in building reconstruction according to claim 5, wherein the specific steps of the gamma ray combined plasma irradiation treatment are as follows: firstly adopting gamma ray irradiation for 2-5min, wherein the irradiation power is 100-.

7. The construction method for reducing carbon emission in building reconstruction as claimed in claim 6, wherein the gamma ray irradiation is performed for 3.5min with an irradiation power of 150W, and then the plasma irradiation is performed for 4.5min with an irradiation power of 230W for a total of 20 min.

8. The construction method for reducing carbon emission in building modification as claimed in claim 1, wherein the microalgae is subjected to photolysis treatment by simulated natural light irradiation, the wavelength of the light irradiation is 200-1000nm, and the irradiation intensity is 510-550 lux.

Technical Field

The invention relates to the technical field of building modification, in particular to a construction method for reducing carbon emission in building modification.

Background

The energy-saving transformation is energy-saving comprehensive transformation performed on energy consumption systems such as an enclosure structure, an air conditioner, heating, ventilation, illumination, power supply and distribution, hot water supply and the like in a building, the operation management level is improved by reconnaissance, diagnosis and optimization design of each energy consumption system, high-new energy-saving technology and products are applied, the energy utilization rate of the building is improved by using renewable energy sources and other ways, the energy waste is reduced, and the energy consumption cost are reduced on the premise of not reducing the service quality of the system. Since the global warming problem is becoming more serious due to the large development of the greenhouse gas emission of the industry by human beings, the global temperature is rising continuously enough to influence the survival key of global species, and therefore, how to reduce the emission of the greenhouse gas is a common global target. Various solutions to reduce carbon dioxide emissions have been developed.

The construction method can be applied to asphalt for waterproofing in building modification, asphalt can be paved and rolled in waterproofing, machines can generate large energy consumption and discharge a large amount of carbon dioxide in paving and rolling, and the construction technology for reducing carbon emission in the prior art is not mature, so that improvement treatment is needed.

Disclosure of Invention

The invention aims to provide a construction method for reducing carbon emission in building reconstruction, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a construction method for reducing carbon emission in building reconstruction comprises the following steps:

step one, erecting a shed: building a shed in the construction environment, wherein the shed is formed by adopting a plastic film to seal the construction environment, and construction workers work in the shed;

step two, paving asphalt: spreading the prepared asphalt on the roof of a building with the spreading thickness of 1-5cm, and then carrying out rolling treatment by using a rolling machine with the rolling pressure of 10-20 MPa;

step three, pretreatment of carbon dioxide absorption: after the rolled asphalt is dried and does not have viscosity, a layer of protective film is laid on the asphalt, and the protective film is compacted;

step four, primary treatment: spraying aqueous solution of sodium bicarbonate, calcium carbonate and deionized water according to the weight ratio of 3 (4-6) to 6-9, wherein the spraying speed is 0.1-2 g/s;

step five, post-treatment: collecting and stacking the protective films, washing, placing microalgae in a closed environment with a shed for photolysis for 5-10 days, and finally collecting the protective films.

Preferably, the plastic film is a plastic film obtained by feeding the phenolic novolac resin, the silicon dioxide and the activated carbon into a double-screw extruder for extrusion according to the weight ratio of (6-9): 1-3): 1.

Preferably, the phenolic novolac resin, the silicon dioxide and the activated carbon are mixed according to the weight ratio of 7:2: 1.

Preferably, the protective film is prepared using a fluororesin.

Preferably, the first treatment in the fourth step adopts gamma ray combined with plasma irradiation treatment.

Preferably, the specific steps of the gamma ray combined plasma irradiation treatment are as follows: firstly adopting gamma ray irradiation for 2-5min, wherein the irradiation power is 100-.

Preferably, the gamma ray irradiation is performed for 3.5min with the irradiation power of 150W, and then the plasma irradiation is performed for 4.5min with the irradiation power of 230W, and the treatment is performed alternately for 20min in total.

Preferably, simulated natural light irradiation is adopted in the photolysis treatment of the microalgae, the wavelength of the light irradiation is 200-1000nm, and the irradiation intensity is 510-550 lux.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention adopts the shed building treatment firstly, aims to ensure that the building is in a closed environment in the reconstruction process, thereby facilitating the gathering of the generated carbon dioxide, not closing, leading the generated carbon dioxide to directly enter the atmosphere and be difficult to recover and treat again, adopts the solution of sodium bicarbonate, calcium carbonate and deionized water to spray in the closed shed, thereby absorbing the carbon dioxide, leading the absorbed solution to fall on the protective film, preparing the protective film by adopting the fluororesin, aiming at having strong corrosion resistance and playing a role in protecting the asphalt.

(2) The plastic film is prepared from linear phenolic resin, silicon dioxide and activated carbon, can play a part of absorption effect on carbon dioxide in the shed, and in addition, the added microalgae is subjected to photolysis treatment to further degrade the carbon dioxide, so that the carbon emission effect is reduced to a great extent; the gamma ray and plasma irradiation treatment can activate the reaction of carbon dioxide and the aqueous solution, thereby further improving the carbon treatment effect.

(3) The carbon dioxide concentration in example 3 of the present invention was 11.4%, while the carbon dioxide concentration in comparative example 1 was 32.3%, and the carbon dioxide concentration in example 3 was 20.9% lower than that in comparative example 1, indicating that the present invention can effectively reduce carbon emission.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.