CN106597846A - Measurement method of greenhouse gas emission reduction of warm mix asphalt mixture - Google Patents

Abstract

The invention discloses a method for measuring greenhouse gas emission reduction of warm-mix asphalt mixture, comprising the following steps: (10) Determination of project boundary: determining the project boundary according to the type of greenhouse gas and its emission source; (20) Hot-mix asphalt mixture Determination of greenhouse gas emissions in the production phase; (30) determination of greenhouse gas emissions in the construction phase of hot mix asphalt mixture; (40) determination of greenhouse gas emissions in the production phase of warm mix asphalt mixture; (50) determination of greenhouse gas emissions in the construction phase of warm mix asphalt mixture Determination of greenhouse gas emissions; (60) Calculation of greenhouse gas emission reduction of warm mix asphalt mixture: according to the greenhouse gas emissions of hot mix asphalt mixture, warm mix asphalt mixture production stage, and construction stage, calculate the Gas emission reduction. The determination method of the invention has simple process and strong operability.

Description

A method for measuring greenhouse gas emission reduction of warm mix asphalt mixture

technical field

The invention belongs to the technical field of road engineering materials and environmental protection, in particular to a method for measuring greenhouse gas emission reduction of warm asphalt mixture with simple process and strong operability.

Background technique

Because asphalt pavement has the advantages of comfortable driving, good visual effect, low noise, and convenient maintenance and repair, it accounts for a large proportion of highways in my country, and the pavement structure of expressways is almost all asphalt pavement. Asphalt pavement construction includes four stages of raw material production, asphalt mixture production, asphalt mixture transportation and asphalt pavement construction, which are the most concentrated stages of material consumption in the life cycle of asphalt pavement. Moreover, due to the unique viscoelastic properties of asphalt mixture, in order to ensure the construction workability of asphalt mixture, the hot mix method is widely used in the production and construction of asphalt mixture at home and abroad, which leads to the problem of greenhouse gas emissions in the construction stage of asphalt pavement particularly prominent.

Due to the complexity and confusion of greenhouse gas emission sources of asphalt mixture, it is difficult to check greenhouse gas emissions and obtain accurate greenhouse gas emissions. At present, my country has not formed a simple and operable calculation method for greenhouse gas emission reduction of warm mix asphalt mixture.

Therefore, the problem existing in the prior art is: due to the complexity and confusion of greenhouse gas emission sources of the asphalt pavement mixture, the statistics of greenhouse gas emission reductions are complicated and inconvenient to operate.

Contents of the invention

The object of the present invention is to provide a method for measuring greenhouse gas emission reduction of warm asphalt mixture, which has simple process and strong operability.

The technical solution that realizes the object of the present invention is:

A method for measuring greenhouse gas emission reduction of warm asphalt mixture, comprising the steps of:

(10) Project boundary determination: determine the project boundary according to the types of greenhouse gases and their emission sources;

(20) Determination of greenhouse gas emissions in the production stage of hot mix asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of hot mix asphalt mixture;

(30) Determination of greenhouse gas emissions during the construction phase of hot-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of hot-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of hot-mix asphalt mixture;

(40) Determination of greenhouse gas emissions in the production stage of warm asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of warm asphalt mixture;

(50) Determination of greenhouse gas emissions during the construction phase of warm-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of warm-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of warm-mix asphalt mixture;

(60) Calculation of greenhouse gas emission reduction of warm-mix asphalt mixture: Calculate the greenhouse gas emission reduction of warm-mix asphalt mixture according to the greenhouse gas emissions of hot-mix asphalt mixture, production stage and construction stage of warm-mix asphalt mixture.

Compared with the prior art, the present invention has the remarkable advantages of:

1. The process is simple and operable: the present invention eliminates the stages with the same greenhouse gas emissions of hot and warm asphalt mixtures by clarifying the true meaning of emission reductions, and at the same time quantifies and calculates the stages with obvious differences by stages and types in detail Greenhouse gas emissions, overcomes the problem that the greenhouse gas emission reduction statistics of warm-mix asphalt mixture are complicated and difficult to operate due to the complicated and chaotic greenhouse gas emission sources. Therefore, it can greatly simplify the calculation method of greenhouse gas emission reduction in the asphalt pavement construction process after using warm-mix asphalt mixture, and thoroughly quantify the greenhouse gas emission reduction of warm-mix asphalt mixture;

2. A method for quantifying greenhouse gas emissions of asphalt mixtures described in the present invention lays a solid foundation for the specific implementation of my country's "carbon emissions trading" policy;

3. The method for quantifying greenhouse gas emissions of asphalt mixtures according to the present invention is beneficial to the popularization and application of low-carbon and environment-friendly asphalt pavement technology and the establishment of a real low-carbon and environment-friendly asphalt pavement construction model.

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a flow chart of the method for measuring greenhouse gas emission reduction of warm-mix asphalt mixture according to the present invention.

Figure 2 is a schematic diagram of the boundary of the emission reduction project during the construction period of warm mix asphalt mixture.

detailed description

As shown in Figure 1, the warm-mix asphalt mixture greenhouse gas emission reduction measuring method of the present invention is characterized in that it comprises the following steps:

(10) Project boundary determination: determine the project boundary according to the types of greenhouse gases and their emission sources;

The project boundary, including baseline emissions and emission sources of project emissions, the types of greenhouse gases included and their emission sources, are shown in Table 1 in detail.

Table 1. Emission sources included or excluded within the project boundary

For the calculation of greenhouse gas emission reduction of warm-mix asphalt mixture, the baseline scenario needs to select the type of asphalt mixture and the production and construction method that are used more in reality. Generally, the production and construction process of hot-mix asphalt mixture can be selected as the baseline scene.

(20) Determination of greenhouse gas emissions in the production stage of hot mix asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of hot mix asphalt mixture;

The specific step of determining the greenhouse gas emissions in the production stage of (20) hot mix asphalt mixture is to calculate the greenhouse gas emissions in the production stage of hot mix asphalt mixture according to the following formula:

E _M =E _{FC_M} +E _{Elec_M} ,

in,

In the formula:

E _M is the total greenhouse gas emission produced in the asphalt mixture production stage, g/t;

E _{FC_M} is the emissions produced by the fuel consumption of the asphalt mixture production unit of the mixture production unit, kg/t;

FC _M,i is the fuel consumption of asphalt mixture production unit i type, kg/t;

NCV _i is the calorific value of unit i type fuel, MJ/kg;

is the CO2 emission factor of fuel type i, kgCO2/MJ;

E _{Elec_M} is the emission generated by electricity consumption per unit of asphalt mixture production, kg/t;

EC _M,Elec is the grid electricity consumed by asphalt mixture production unit, MWH/t; for

CO ₂ emission factor per unit grid electricity, kgCO ₂ /MWH.

(30) Determination of greenhouse gas emissions during the construction phase of hot-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of hot-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of hot-mix asphalt mixture;

The specific steps for determining the greenhouse gas emissions during the construction phase of the (30) hot mix asphalt mixture are as follows: calculate the greenhouse gas emissions during the construction phase of the hot mix asphalt mixture according to the following formula:

E _C = E _{FC_C} ,

in,

In the formula,

E _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t;

E _{FC_C} is the greenhouse gas emissions produced by fuel consumption of unit mixture equipment in asphalt pavement construction, kg/t;

FC _C,i is the fuel consumption of unit asphalt mixture construction type i in asphalt pavement construction, kg/t;

NCV _i is the calorific value of unit i type fuel, MJ/kg;

is the CO2 emission factor of fuel type i, kgCO2/MJ.

(40) Determination of greenhouse gas emissions in the production stage of warm asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of warm asphalt mixture;

The step of determining the greenhouse gas emissions in the warm-mix asphalt mixture production stage in (40) is specifically to calculate the greenhouse gas emissions in the warm-mix asphalt mixture production stage according to the following formula:

E ^* _M = E ^* _{FC_M} + E ^* _{Elec_M} ,

in,

In the formula:

E ^* _M is the total greenhouse gas emission produced in the production stage of warm mix asphalt mixture, g/t;

E ^* _{FC_M} is the emissions produced by fuel consumption of asphalt mixture production unit of warm asphalt mixture production unit, kg/t;

FC ^* _M,i is the fuel consumption of warm mix asphalt mixture production unit i type, kg/t;

NCV _i is the calorific value of unit i type fuel, MJ/kg;

is the CO ₂ emission factor of fuel type i, kgCO ₂ /MJ.

E* _{Elec_M} is the emission generated by electricity consumption per unit of asphalt mixture production, kg/t;

EC ^* _{M, Elec} is the grid electricity consumed by asphalt mixture production unit, MWH/t;

is the CO ₂ emission factor per unit grid electricity, kgCO ₂ /MWH. .

(50) Determination of greenhouse gas emissions during the construction phase of warm-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of warm-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of warm-mix asphalt mixture;

The specific steps for determining the greenhouse gas emissions during the construction phase of (50) warm-mix asphalt mixture are as follows: calculate the greenhouse gas emissions during the construction phase of warm-mix asphalt mixture according to the following formula:

E ^* _C = E ^* _{FC_C} ,

in,

In the formula,

E ^* _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t;

E ^* _{FC_C} is the greenhouse gas emissions produced by the fuel consumption of unit asphalt mixture equipment during construction, kg/t;

FC ^* _C,i is the fuel consumption of type i burned by unit asphalt mixture equipment during construction, kg/t;

NCV _i is the calorific value of unit i type fuel, MJ/kg; is the CO ₂ emission factor of fuel type i, gCO ₂ /MJ.

(60) Calculation of greenhouse gas emission reduction of warm-mix asphalt mixture: Calculate the greenhouse gas emission reduction of warm-mix asphalt mixture according to the greenhouse gas emissions of hot-mix asphalt mixture, production stage and construction stage of warm-mix asphalt mixture.

Asphalt pavement construction, due to the use of warm-mix asphalt mixture, reduces greenhouse gas emissions.

The calculation step of (60) warm-mix asphalt mixture greenhouse gas emission reduction is specifically to calculate the warm-mix asphalt mixture greenhouse gas emission reduction according to the following formula:

ER _y = BE _y -PE _y

ER _y ＝(E _M +E _C )-(E ^* _M +E ^* _C )

ER _y = (E _{FC_M} +E _{Elec_M} +E _{FC_C} )-(E ^* _{FC_M} +E ^* _{Elec_M} +E ^* _{FC_C} ),

In the formula,

ER _y is the emission reduction generated by project activities in year y (t CO ₂ );

BE _y is the baseline emissions in year y (t CO ₂ );

PE _y is project emission in year y (t CO ₂ );

E _M is the total greenhouse gas emission produced in the asphalt mixture production stage, g/t;

E _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t;

E ^* _M is the total greenhouse gas emission produced in the production stage of warm mix asphalt mixture, g/t;

E ^* _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t.

The schematic diagram of the emission reduction project boundary during the construction period of warm mix asphalt mixture is shown in Figure 2.

The carbon emission factors of various types of energy are shown in Table 2.

The calorific value of various types of energy is shown in Table 3.

An operable method for measuring and calculating the greenhouse gas emission reduction of warm-mix asphalt mixture according to the present invention will be further described below in conjunction with specific examples.

Basic data:

Paving one ton of low-carbon and environmentally friendly pavement material - warm mix asphalt mixture, calculation of greenhouse gas emission reduction.

After investigation, the average energy consumption of a ton of hot-mix asphalt produced by the mixing plant in the production stage of hot-mix asphalt mixture is 4kw h/t of electricity and 6.9kg/t of heavy oil, and the construction of one ton of hot-mix asphalt in the paving and rolling stage The average energy consumption of the mixture is 1.8kg/t of diesel oil; the average energy consumption of the mixing plant to produce one ton of warm asphalt mixture in the production stage of warm mix asphalt mixture is 4kw·h/t of electricity and 6.4kg/t of heavy oil. The average energy consumption of one ton of hot mix asphalt mixture in the paving and rolling stage is 1.7kg/t of diesel.

Table 2 Carbon emission factors of various types of energy

Table 3 Calorific value of various types of energy sources

energy type heavy oil diesel fuel electricity Calorific value 41.816(MJ/kg) 43.0 (MJ/kg) 3.6(MJ/degree)

1) Project Boundary

Greenhouse gas emission sources E _{during asphalt pavement construction include raw material production stage greenhouse gas emission E RM_P ,} asphalt mixture production and mixing stage greenhouse gas emission E _M , asphalt mixture transportation stage greenhouse gas emission E _T , asphalt mixture paving and the greenhouse gas emission E _C in the rolling stage.

Among them, the difference between the raw material production stage E _{RM_P} and the asphalt mixture transportation stage E _T is negligible due to the discharge of warm mix and hot mix asphalt mixture, so it is excluded for simplification.

Among them, the fugitive emissions of greenhouse gases in the mixing stage of asphalt mixture production, and the fugitive emissions of greenhouse gases in the paving and rolling stages are negligible compared with other emissions, so they are excluded for simplification.

Among them, greenhouse gases mainly include CO ₂ , CH ₄ , and N ₂ O. Among them, CH ₄ and N ₂ O are excluded for simplification because their emissions are negligible relative to CO ₂ .

2) Baseline emissions

(1) Hot mix asphalt mixing stage

E _M =E _{FC_M} +E _{Elec_M}

① Fuel combustion

E _{FC_M} = Σ _i FC _M,i NCV _i EF _CO2,i

E _{FC_M} ＝6.9kg/t×41.816MJ/kg×77400mg/MJ＝2.23×10 ⁷ mg/t

②Power consumption

E _{Elec_M} = EC _{M, Elec} EF _{CO2, Elec}

E _{Elec_M} ＝4.0kw·h/t×3.6MJ/kw·h×317000mg/MJ

E _{Elec_M} ＝4.56×10 ⁶ mg/t

(2) Construction stage of hot mix asphalt mixture

E _C ＝E _{FC_C}

E _{FC_C} ＝1.8kg/t×43.0MJ/kg×74100mg/MJ＝5.735×10 ⁶ mg/t

3) Project emissions

(1) Warm mix asphalt mixture production stage

E ^* _M = E ^* _{FC_M} + E ^* _{Elec_M}

① Fuel combustion

E ^* _{FC_M} ＝6.4kg/t×41.816MJ/kg×77400mg/MJ＝2.07×10 ⁷ mg/t

②Power consumption

E ^* _{Elec_M} ＝4.0kw·h/t×3.6MJ/kw·h×317000mg/MJ

E ^* _{Elec_M} = 4.56×10 ⁶ mg/t

(2) Asphalt pavement construction stage

E ^* _C = E ^* _{FC_C}

E ^* _{FC_C} ＝1.7kg/t×43.0MJ/kg×74100mg/MJ＝5.417×10 ⁶ mg/t

4) Emission reduction

Asphalt pavement construction, due to the use of warm asphalt mixture, reduces greenhouse gas emissions. The specific emission reduction is calculated as follows:

ER _y = BE _y -PE _y

ER _y ＝(E _M +E _C )-(E ^* _M +E ^* _C )

ER _y ＝(E _{FC_M} +E _{Elec_M} +E _{FC_C} )-(E ^* _{FC_M} +E ^* _{Elec_M} +E ^* _{FC_C} )

ER _y =(22.3×10 ⁶ +4 .56×10 ⁶ +5.735×10 ⁶ ) ^- (20.7×10 ⁶ +4.56×10 ⁶ +5.417×10 ⁶ )

ER _y ＝1.918×10 ⁶ mg/t＝1.918kg/t

Therefore, compared with the conventionally used hot mix asphalt mixture, the use of warm mix asphalt mixture in the construction of asphalt pavement will reduce greenhouse gas emissions by 1.918kg/t, that is, every ton of warm mix asphalt used The mixture can reduce greenhouse gas emissions by about 1.918kg.

Embodiment one:

A total of 10,000 tons of warm-mix asphalt mixture is used for the asphalt pavement of the G-A section of an expressway in Jiangsu Province. Referring to the basic data of the above-mentioned "Example", the greenhouse gas emission reduction of the asphalt pavement construction of the road section is about:

ER _y = BE _y - PE _y

ER _y ＝1.918kg/t×10000t＝19.18t

Embodiment two:

A total of 20,000 tons of warm asphalt mixture is used for the asphalt pavement of the G-B section of an expressway in Jiangsu Province. Referring to the basic data of the above "Example", the greenhouse gas emission reduction of the asphalt pavement construction of the road section is about:

ER _y = BE _y -PE _y

ER _y ＝1.918kg/t×20000t＝38.36t

Embodiment three:

A total of 30,000 tons of warm-mix asphalt mixture is used for the asphalt pavement of the G-C section of an expressway in Jiangsu Province. Referring to the basic data of the above-mentioned "Example", the greenhouse gas emission reduction of the asphalt pavement construction of the road section is about:

ER _y = BE _y -PE _y

ER _y ＝1.918kg/t×30000t＝57.54t

Embodiment four:

A total of 40,000 tons of warm asphalt mixture is used for the asphalt pavement of the G-D section of an expressway in Jiangsu Province. Referring to the basic data of the above "Example", the greenhouse gas emission reduction of the asphalt pavement construction of the road section is about:

ER _y = BE _y - PE _y

ER _y =1.918kg/t×40000t=76.72t.

Claims (6)

1. A warm-mix asphalt mixture greenhouse gas emission reduction assay method, is characterized in that, comprises the steps: (10) Project boundary determination: determine the project boundary according to the types of greenhouse gases and their emission sources; (20) Determination of greenhouse gas emissions in the production stage of hot mix asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of hot mix asphalt mixture; (30) Determination of greenhouse gas emissions during the construction phase of hot-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of hot-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of hot-mix asphalt mixture; (40) Determination of greenhouse gas emissions in the production stage of warm asphalt mixture: calculate the greenhouse gas emissions in the production stage of asphalt mixture according to the greenhouse gases produced by fuel consumption and electricity consumption in the production stage of warm asphalt mixture; (50) Determination of greenhouse gas emissions during the construction phase of warm-mix asphalt mixture: calculate the greenhouse gas emissions during the construction phase of warm-mix asphalt mixture according to the greenhouse gases produced by fuel consumption during the construction phase of warm-mix asphalt mixture; (60) Calculation of greenhouse gas emission reduction of warm-mix asphalt mixture: Calculate the greenhouse gas emission reduction of warm-mix asphalt mixture according to the greenhouse gas emissions of hot-mix asphalt mixture, production stage and construction stage of warm-mix asphalt mixture. 2. The method for measuring greenhouse gas emissions according to claim 1, characterized in that, the (20) hot mix asphalt production stage greenhouse gas emissions determination step is specifically to calculate the hot mix asphalt according to the following formula Greenhouse gas emissions during the production phase: E _M =E _{FC_M} +E _{Elec_M} , in, ${\mathrm{<span\; class="notranslate">\; E.</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; =</span>{<span\; class="notranslate">\; \&Sigma;</span>}_{\mathrm{<span\; class="notranslate">\; i</span>}}{\mathrm{<span\; class="notranslate">\; FC</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; NCV</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; ,</span>$ ${\mathrm{<span\; class="notranslate">\; E.</span>}}_{\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; EC</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; ,</span>$ In the formula: E _M is the total greenhouse gas emission produced in the asphalt mixture production stage, g/t; E _{FC_M} is the emissions produced by the fuel consumption of the asphalt mixture production unit of the mixture production unit, kg/t; FC _M,i is the fuel consumption of asphalt mixture production unit i type, kg/t; NCV _i is the calorific value of unit i type fuel, MJ/kg; is the CO2 emission factor of fuel type i, kgCO2/MJ, E _{Elec_M} is the emission generated by electricity consumption per unit of asphalt mixture production, kg/t; EC _M,Elec is the grid electricity consumed by asphalt mixture production unit, MWH/t; is the CO ₂ emission factor per unit grid electricity, kgCO ₂ /MWH. 3. The method for measuring greenhouse gas emissions according to claim 1, characterized in that the (30) hot mix asphalt mixture construction stage greenhouse gas emissions determination step is specifically calculating the hot mix asphalt mixture according to the following formula Greenhouse gas emissions during the construction phase: E _C = E _{FC_C} , in, ${\mathrm{<span\; class="notranslate">\; E.</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; C</span>}}<span\; class="notranslate">\; =</span>{<span\; class="notranslate">\; \&Sigma;</span>}_{\mathrm{<span\; class="notranslate">\; i</span>}}{\mathrm{<span\; class="notranslate">\; FC</span>}}_{\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; NCV</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; ,</span>$ In the formula, E _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t; E _{FC_C} is the greenhouse gas emissions produced by unit fuel consumption of mixture equipment in asphalt pavement construction, kg/t, FC _C,i is the fuel consumption of unit asphalt mixture construction type i in asphalt pavement construction, kg/t; NCV _i is the calorific value of unit i type fuel, MJ/kg; is the CO2 emission factor of fuel type i, kgCO2/MJ. 4. The method for measuring greenhouse gas emissions according to claim 1, characterized in that, the (40) warm-mix asphalt mixture production stage greenhouse gas emissions determination step is specifically calculating the warm-mix asphalt mixture according to the following formula Greenhouse gas emissions during the production phase: E ^* _M = E ^* _{FC_M} + E ^* _{Elec_M} , in, ${{\mathrm{<span\; class="notranslate">\; E.</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}^{<span\; class="notranslate">\; *</span>}{{\mathrm{<span\; class="notranslate">\; FC</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; NCV</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; ,</span>$ ${{\mathrm{<span\; class="notranslate">\; E.</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; m</span>}}<span\; class="notranslate">\; =</span>{{\mathrm{<span\; class="notranslate">\; EC</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; m</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; E.</span>}\mathrm{<span\; class="notranslate">\; l</span>}\mathrm{<span\; class="notranslate">\; e</span>}\mathrm{<span\; class="notranslate">\; c</span>}}<span\; class="notranslate">\; ,</span>$ In the formula: E ^* _M is the total greenhouse gas emission produced in the production stage of warm mix asphalt mixture, g/t; E ^* _{FC_M} is the emissions produced by fuel consumption of asphalt mixture production unit of warm asphalt mixture production unit, kg/t; FC ^* _M,i is the fuel consumption of warm mix asphalt mixture production unit i type, kg/t; NCV _i is the calorific value of unit i type fuel, MJ/kg; is the CO ₂ emission factor of fuel type i, kgCO ₂ /MJ. E ^* _{Elec_M} is the emission generated by electricity consumption per unit of asphalt mixture production, kg/t; EC ^* _{M, Elec} is the grid electricity consumed by asphalt mixture production unit, MWH/t; is the CO ₂ emission factor per unit grid electricity, kgCO ₂ /MWH. . 5. The method for measuring greenhouse gas emissions according to claim 1, characterized in that, the (50) warm-mix asphalt mixture construction stage greenhouse gas emissions determination step is specifically calculating the warm-mix asphalt mixture according to the following formula Greenhouse gas emissions during the construction phase: E ^* _C = E ^* _{FC_C} , in, ${{\mathrm{<span\; class="notranslate">\; E.</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; \_</span>\mathrm{<span\; class="notranslate">\; C</span>}}<span\; class="notranslate">\; =</span>{<span\; class="notranslate">\; \&Sigma;</span>}_{\mathrm{<span\; class="notranslate">\; i</span>}}{{\mathrm{<span\; class="notranslate">\; FC</span>}}^{<span\; class="notranslate">\; *</span>}}_{\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; NCV</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; \&CenterDot;</span>{\mathrm{<span\; class="notranslate">\; EF</span>}}_{{\mathrm{<span\; class="notranslate">\; CO</span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; i</span>}}<span\; class="notranslate">\; ,</span>$ In the formula, E ^* _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t; E ^* _{FC_C} is the greenhouse gas emissions produced by the fuel consumption of unit asphalt mixture equipment during construction, kg/t; FC ^* _C,i is the fuel consumption of type i burned by unit asphalt mixture equipment during construction, kg/t; NCV _i is the calorific value of unit i type fuel, MJ/kg; is the CO ₂ emission factor of fuel type i, gCO ₂ /MJ. 6. The method for measuring greenhouse gas emissions according to any one of claims 1 to 5, characterized in that, the calculation step of (60) warm-mix asphalt mixture greenhouse gas emission reduction is specifically, calculating warm-mix according to the following formula Greenhouse gas emission reduction of asphalt mixture: ER _y = BE _y -PE _y ER _y ＝(E _M +E _C )-(E ^* _M +E ^* _C ) ER _y = (E _{FC_M} +E _{Elec_M} +E _{FC_C} )-(E ^* _{FC_M} +E ^* _{Elec_M} +E ^* _{FC_C} ), In the formula, ER _y is the emission reduction generated by project activities in year y (t CO ₂ ); BE _y is the baseline emissions in year y (t CO ₂ ); PE _y is project emission in year y (t CO ₂ ); E _M is the total greenhouse gas emission produced in the asphalt mixture production stage, g/t; E _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t; E ^* _M is the total greenhouse gas emission produced in the production stage of warm mix asphalt mixture, g/t; E ^* _C is the greenhouse gas emission per unit mixture in asphalt pavement construction, kg/t.