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

Abstract

The present invention discloses a measurement method of greenhouse gas emission reduction of the warm mix asphalt mixture. The method comprises the following steps: (10) project boundary determination: determining a project boundary according to the types of the greenhouse gases and the emission sources thereof; (20) determination of the greenhouse gas emission in the production phase of the hot-mix asphalt mixture; (30) determination of the greenhouse gas emission in the construction phase of the hot-mix asphalt mixture; (40) determination of the greenhouse gas emission in the production phase of the warm mix asphalt mixture; (50) determination of the greenhouse gas emission in the construction phase of the warm mix asphalt mixture; and (60) calculation of the greenhouse gas emission of the warm mix asphalt mixture: calculating the greenhouse gas emission reduction of the warm mix asphalt mixture according to the greenhouse gas emission in the production phase of the hot-mix asphalt mixture, the greenhouse gas emission in the construction phase of the hot-mix asphalt mixture, the greenhouse gas emission in the production phase of the warm mix asphalt mixture and the greenhouse gas emission in the construction phase of the warm mix asphalt mixture. The measurement method is simple in process and high in operability.

Description

method for measuring greenhouse gas emission reduction of warm-mixed asphalt mixture

Technical Field

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

Background

The asphalt pavement has the advantages of comfortable running, good visual effect, low noise, convenient maintenance and repair and the like, and occupies a great proportion in the highway of China, wherein the pavement structure of the expressway is almost all the asphalt pavement. The construction of the asphalt pavement comprises four stages of raw material production, asphalt mixture transportation and asphalt pavement construction, and is the most concentrated stages of material consumption in the life cycle of the asphalt pavement. Moreover, due to the unique viscoelastic property of the asphalt mixture, in order to ensure the construction workability of the asphalt mixture, the hot mixing method is generally adopted at home and abroad to produce and construct the asphalt mixture at present, so that the problem of greenhouse gas emission in the asphalt pavement construction stage is particularly prominent.

Due to the complicated and disordered greenhouse gas emission sources of the asphalt mixture, the checking of the greenhouse gas emission is difficult, and the accurate greenhouse gas emission is difficult to obtain. At present, a simple and operable method for measuring and calculating the greenhouse gas emission reduction of the warm-mix asphalt mixture is not formed in China.

Therefore, the prior art has the problems that: due to the complicated and disordered emission sources of the greenhouse gases of the asphalt pavement mixture, the statistics of the reduction of the emission of the greenhouse gases is complicated and the operation is inconvenient.

Disclosure of Invention

The invention aims to provide a method for measuring the greenhouse gas emission reduction of a warm-mixed asphalt mixture, which is simple in process and strong in operability.

The technical solution for realizing the purpose of the invention is as follows:

a method for measuring the reduced discharge of greenhouse gases in a warm-mix asphalt mixture comprises the following steps:

(10) item boundary determination: determining project boundaries according to greenhouse gas types and emission sources thereof;

(20) determining greenhouse gas emission amount in the production stage of the hot-mix asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the hot-mixed asphalt mixture production stage;

(30) determining greenhouse gas emission amount in the construction stage of the hot-mix asphalt mixture: calculating greenhouse gas emission amount in the construction stage of the hot-mixed asphalt mixture according to greenhouse gas generated by fuel consumption in the construction stage of the hot-mixed asphalt mixture;

(40) determining greenhouse gas emission amount in the production stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the warm-mixed asphalt mixture production stage;

(50) determining greenhouse gas emission amount in the construction stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission amount in the warm-mixed asphalt mixture construction stage according to greenhouse gas generated by fuel consumption in the warm-mixed asphalt mixture construction stage;

(60) and (3) calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture: and calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture according to the greenhouse gas emission amount of the warm-mixed asphalt mixture, the warm-mixed asphalt mixture production stage and the construction stage.

Compared with the prior art, the invention has the following remarkable advantages:

1. the process is simple, and the operability is strong: the invention eliminates the stage of heat removal and the stage of the same greenhouse gas emission amount of the warm-mixed asphalt mixture by determining the real meaning of the emission reduction amount, and simultaneously calculates the greenhouse gas emission amount of the obvious stage in a detailed and quantitative manner by stages and types, thereby overcoming the problems of complicated greenhouse gas emission amount statistics and poor operation caused by complicated and disordered greenhouse gas emission sources of the warm-mixed asphalt mixture. Therefore, the calculation method for reducing the greenhouse gas emission in the process of constructing the asphalt pavement after the warm-mixed asphalt mixture is adopted can be greatly simplified, and the reduction of the greenhouse gas emission of the warm-mixed asphalt mixture is thoroughly quantified in a floor mode;

2. the quantitative measuring and calculating method for the greenhouse gas emission of the asphalt mixture lays a solid foundation for the specific implementation of the carbon emission trading policy in China;

3. the quantitative measuring and calculating method for the greenhouse gas emission of the asphalt mixture is beneficial to popularization and application of the low-carbon environment-friendly asphalt pavement technology and establishment of a real low-carbon environment-friendly asphalt pavement construction mode.

The invention is described in further detail below with reference to the figures and the detailed description.

Drawings

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

Fig. 2 is a schematic diagram of the boundary of the emission reduction project in the construction period of the warm-mix asphalt mixture.

Detailed Description

As shown in figure 1, the method for measuring the greenhouse gas emission reduction of the warm-mix asphalt mixture is characterized by comprising the following steps of:

(10) item boundary determination: determining project boundaries according to greenhouse gas types and emission sources thereof;

project boundaries, including baseline emissions and source of project emissions, including greenhouse gas species and sources of emissions, are detailed in table 1.

Table 1 sources of emissions contained or excluded within the boundaries of the items

For the calculation of the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture, the reference line scene needs to select the types and production construction modes of the asphalt mixture which is used more practically, and the production construction process of the hot-mixed asphalt mixture can be generally selected as the reference line scene.

(20) Determining greenhouse gas emission amount in the production stage of the hot-mix asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the hot-mixed asphalt mixture production stage;

the step (20) of determining the greenhouse gas emission amount in the production phase of the hot-mix asphalt mixture is specifically to calculate the greenhouse gas emission amount in the production phase of the hot-mix asphalt mixture according to the following formula:

E_M＝E_{FC_M}+E_{Elec_M}，

wherein,

in the formula:

E_Mthe total greenhouse gas emission is g/t generated in the production stage of the asphalt mixture;

E_{FC_M}the discharge amount of the fuel consumption generated by asphalt mixture production fuel of a mixture production unit is kg/t;

FC_M,ithe i-type fuel consumption, kg/t, for unit asphalt mixture production is consumed;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

CO2 emission factor per type i fuel, kgCO 2/MJ;

E_{Elec_M}the discharge amount is kg/t generated by the electricity consumption of the mixture in a unit of asphalt mixture production;

EC_M,Electhe electric quantity of a power grid, MWH/t, consumed by asphalt mixture production units;is composed of

CO of unit electric network electricity quantity₂Emission factor, kgCO₂/MWH。

(30) Determining greenhouse gas emission amount in the construction stage of the hot-mix asphalt mixture: calculating greenhouse gas emission amount in the construction stage of the hot-mixed asphalt mixture according to greenhouse gas generated by fuel consumption in the construction stage of the hot-mixed asphalt mixture;

the step (30) of determining the greenhouse gas emission amount in the construction stage of the hot-mix asphalt mixture is specifically to calculate the greenhouse gas emission amount in the construction stage of the hot-mix asphalt mixture according to the following formula:

E_C＝E_{FC_C}，

wherein,

in the formula,

E_Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E_{FC_C}is a unit mixture equipment fuel in asphalt pavement constructionThe material consumption generates the discharge amount of greenhouse gases, kg/t;

FC_C,ithe i-type fuel consumption, kg/t, of unit asphalt mixture construction in asphalt pavement construction is calculated;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

is the CO2 emission factor per type i fuel, kgCO 2/MJ.

(40) Determining greenhouse gas emission amount in the production stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the warm-mixed asphalt mixture production stage;

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

E^* _M＝E^* _{FC_M}+E^* _{Elec_M}，

wherein,

in the formula:

E^* _Mthe total emission of greenhouse gases generated in the production stage of the warm-mixed asphalt mixture is g/t;

E^* _{FC_M}the row generated by the consumption of fuel in the production of asphalt mixture for the unit of warm mix asphalt productionThe discharge amount is kg/t;

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

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

CO as fuel of type i₂Emission factor, kgCO₂/MJ。

E*_{Elec_M}The discharge amount is kg/t generated by the electricity consumption of the mixture in a unit of asphalt mixture production;

EC^* _M,Electhe electric quantity of a power grid, MWH/t, consumed by asphalt mixture production units;

CO as unit of grid power₂Emission factor, kgCO₂/MWH。。

(50) Determining greenhouse gas emission amount in the construction stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission amount in the warm-mixed asphalt mixture construction stage according to greenhouse gas generated by fuel consumption in the warm-mixed asphalt mixture construction stage;

the (50) determining the greenhouse gas emission amount in the warm-mixed asphalt mixture construction stage specifically comprises the following steps of calculating the greenhouse gas emission amount in the warm-mixed asphalt mixture construction stage according to the following formula:

E^* _C＝E^* _{FC_C}，

wherein,

in the formula,

E^* _Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E^* _{FC_C}the greenhouse gas emission amount, kg/t, is generated for unit asphalt mixture equipment fuel consumption in construction;

FC^* _C,ithe consumption of i-type fuel for unit asphalt mixture equipment combustion in construction is kg/t;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;CO as fuel of type i₂Emission factor, gCO₂/MJ。

(60) And (3) calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture: and calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture according to the greenhouse gas emission amount of the warm-mixed asphalt mixture, the warm-mixed asphalt mixture production stage and the construction stage.

The construction of the asphalt pavement adopts the warm-mixed asphalt mixture, so that the emission of greenhouse gases is reduced.

The step (60) of calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture is to calculate the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture 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_yreduced volume (tco) generated for y year project activities₂)；

BE_yEmission baseline for y years (tco)₂)；

PE_yProject emissions for y years (tco)₂)；

E_MThe total greenhouse gas emission is g/t generated in the production stage of the asphalt mixture;

E_Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E^* _Mthe total emission of greenhouse gases generated in the production stage of the warm-mixed asphalt mixture is g/t;

E^* _Cthe method is used for generating the greenhouse gas emission amount, kg/t, of a single mixture in the asphalt pavement construction.

A schematic diagram of the boundary of the emission reduction project in the construction period of the warm-mix asphalt mixture is shown in fig. 2.

Carbon emission factors for various types of energy sources are shown in table 2.

The calorific value of each type of energy source is shown in table 3.

The operable method for measuring and calculating the greenhouse gas emission reduction of the warm-mix asphalt mixture according to the present invention will be further described with reference to the following embodiments.

Basic data:

paving one ton of low-carbon environment-friendly pavement material, namely warm-mixed asphalt mixture, and calculating the reduction and discharge amount of greenhouse gases.

According to investigation, the average value of the energy consumption of one ton of hot-mixed asphalt mixture produced by a mixing plant in the hot-mixed asphalt mixture production stage is 4 kw.h/t of electric power and 6.9kg/t of heavy oil, and the average value of the energy consumption of one ton of hot-mixed asphalt mixture constructed in the paving and rolling stage is 1.8kg/t of diesel oil; the average energy consumption of one ton of warm-mixed asphalt mixture produced by the mixing plant in the warm-mixed asphalt mixture production stage is 4 kw.h/t of electric power and 6.4kg/t of heavy oil, and the average energy consumption of one ton of warm-mixed asphalt mixture constructed in the paving and rolling stage is 1.7kg/t of diesel oil.

TABLE 2 carbon emission factor for various types of energy

TABLE 3 calorific value of various types of energy

Type of energy	Heavy oil	Diesel oil	Electric power
				Heat generation amount	41.816(MJ/kg)	43.0(MJ/kg)	3.6 (MJ/degree)

1) Item boundaries

Greenhouse gas emission source E in asphalt pavement construction process_{General assembly}Greenhouse gas emissions E including the raw material production stage_{RM_P}Greenhouse gas emission E in mixing stage of asphalt mixture production_MAnd E, emission of greenhouse gases in the asphalt mixture transportation stage_TAnd E, greenhouse gas emission in the paving and rolling stages of the asphalt mixture_C。

Wherein the raw material is produced in stage E_{RM_P}Stage E of transporting with asphalt mixture_TThe difference between the discharge amounts of the warm-mixed asphalt mixture and the hot-mixed asphalt mixture can be ignored and is eliminated for simplification.

The greenhouse gas emission during the asphalt mixture production mixing stage and the greenhouse gas emission during the paving and rolling stage are omitted for simplification because the emission is less negligible compared with other emission.

Wherein the greenhouse gases mainly comprise CO₂、CH₄、N₂O, wherein CH₄And N₂O is due to the relative relation to CO₂The amount of emissions is less negligible and is therefore excluded for simplicity.

2) Datum line venting

(1) Mixing stage of hot-mixed asphalt mixture

E_M＝E_{FC_M}+E_{Elec_M}

Combustion of fuel

E_{FC_M}＝Σ_iFC_M,i·NCV_i·EF_CO2,i

E_{FC_M}＝6.9kg/t×41.816MJ/kg×77400mg/MJ＝2.23×10⁷mg/t

② power 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}＝4.56×10⁶mg/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＝5.735×10⁶mg/t

3) Project emissions

(1) Production stage of warm-mix asphalt mixture

E^* _M＝E^* _{FC_M}+E^* _{Elec_M}

Combustion of fuel

E^* _{FC_M}＝6.4kg/t×41.816MJ/kg×77400mg/MJ＝2.07×10⁷mg/t

② power consumption

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

E^* _{Elec_M}＝4.56×10⁶mg/t

(2) Construction stage of asphalt pavement

E^* _C＝E^* _{FC_C}

E^* _{FC_C}＝1.7kg/t×43.0MJ/kg×74100mg/MJ＝5.417×10⁶mg/t

4) Volume of reducing discharge

In the construction of the asphalt pavement, because the warm-mixed asphalt mixture is adopted, the emission of greenhouse gases is reduced, and the specific reduction capacity 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＝(22.3×10⁶+4^.56×10⁶+5.735×10⁶)-(20.7×10⁶+4.56×10⁶+5.417×10⁶)

ER_y＝1.918×10⁶mg/t＝1.918kg/t

therefore, compared with the conventionally adopted hot-mix asphalt mixture, the warm-mix asphalt mixture adopted for constructing the asphalt pavement can reduce the emission of greenhouse gases, and the emission is reduced by 1.918kg/t, namely, the emission of the greenhouse gases can be reduced by about 1.918kg per ton of the warm-mix asphalt mixture.

The first embodiment is as follows:

the total amount of the warm-mixed asphalt mixture used for the asphalt pavement of the G-A section of a certain expressway in Jiangsu province is 10000 tons, and the reduction of the greenhouse gas in the construction of the asphalt pavement of the section is about by referring to the basic data of the embodiment:

ER_y＝BE_y-PE_y

ER_y＝1.918kg/t×10000t＝19.18t

example two:

the total amount of the warm-mixed asphalt mixture used for the asphalt pavement of the G-B section of a certain expressway in Jiangsu province is 20000 tons, and by referring to the basic data of the embodiment, the greenhouse gas emission reduction amount of the asphalt pavement construction of the section is about:

ER_y＝BE_y-PE_y

ER_y＝1.918kg/t×20000t＝38.36t

example three:

the total amount of warm-mixed asphalt mixture used for the asphalt pavement of the G-C section of a certain expressway in Jiangsu province is 30000 tons, and by referring to the basic data of the embodiment, the greenhouse gas emission reduction amount of the asphalt pavement construction of the section is about:

ER_y＝BE_y-PE_y

ER_y＝1.918kg/t×30000t＝57.54t

example four:

the total amount of the warm-mixed asphalt mixture used for the asphalt pavement of the G-D section of a certain highway in Jiangsu province is 40000 tons, and by referring to the basic data of the embodiment, the greenhouse gas emission reduction amount of the asphalt pavement construction of the section is about:

ER_y＝BE_y-PE_y

ER_y＝1.918kg/t×40000t＝76.72t。

Claims (6)

1. A method for measuring the reduced discharge of greenhouse gases in a warm-mix asphalt mixture is characterized by comprising the following steps:

(10) item boundary determination: determining project boundaries according to greenhouse gas types and emission sources thereof;

(20) determining greenhouse gas emission amount in the production stage of the hot-mix asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the hot-mixed asphalt mixture production stage;

(30) determining greenhouse gas emission amount in the construction stage of the hot-mix asphalt mixture: calculating greenhouse gas emission amount in the construction stage of the hot-mixed asphalt mixture according to greenhouse gas generated by fuel consumption in the construction stage of the hot-mixed asphalt mixture;

(40) determining greenhouse gas emission amount in the production stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission in the asphalt mixture production stage according to greenhouse gases generated by fuel consumption and power consumption in the warm-mixed asphalt mixture production stage;

(50) determining greenhouse gas emission amount in the construction stage of the warm-mixed asphalt mixture: calculating greenhouse gas emission amount in the warm-mixed asphalt mixture construction stage according to greenhouse gas generated by fuel consumption in the warm-mixed asphalt mixture construction stage;

(60) and (3) calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture: and calculating the greenhouse gas emission reduction amount of the warm-mixed asphalt mixture according to the greenhouse gas emission amount of the warm-mixed asphalt mixture, the warm-mixed asphalt mixture production stage and the construction stage.

2. The method for measuring greenhouse gas emissions according to claim 1, wherein the (20) step of determining greenhouse gas emissions during the production phase of the hot-mix asphalt mixture is a step of calculating greenhouse gas emissions during the production phase of the hot-mix asphalt mixture according to the following formula:

E_M＝E_{FC_M}+E_{Elec_M}，

wherein,

$E_{FC\_M}={\Σ}_i{\mathrm{FC}}_{M,i}\·{\mathrm{NCV}}_i\·{\mathrm{EF}}_{{\mathrm{CO}}_2,i},$

$E_{Elec\_M}={\mathrm{EC}}_{M,Elec}\·{\mathrm{EF}}_{{\mathrm{CO}}_2,Elec},$

in the formula:

E_Mthe total greenhouse gas emission is g/t generated in the production stage of the asphalt mixture;

E_{FC_M}the discharge amount of the fuel consumption generated by asphalt mixture production fuel of a mixture production unit is kg/t;

FC_M,ithe i-type fuel consumption, kg/t, for unit asphalt mixture production is consumed;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

CO2 emission factor per type i fuel, kgCO2/MJ,

E_{Elec_M}the discharge amount is kg/t generated by the electricity consumption of the mixture in a unit of asphalt mixture production;

EC_M,Electhe electric quantity of a power grid, MWH/t, consumed by asphalt mixture production units;CO as unit of grid power₂Emission factor, kgCO₂/MWH。

3. The method for measuring greenhouse gas emissions according to claim 1, wherein the step (30) of determining the greenhouse gas emissions during the hot-mix asphalt mixture construction stage is to calculate the greenhouse gas emissions during the hot-mix asphalt mixture construction stage according to the following formula:

E_C＝E_{FC_C}，

wherein,

$E_{FC\_C}={\Σ}_i{\mathrm{FC}}_{C,i}\·{\mathrm{NCV}}_i\·{\mathrm{EF}}_{{\mathrm{CO}}_2,i},$

in the formula,

E_Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E_{FC_C}the method generates the greenhouse gas emission amount, kg/t,

FC_C,ithe i-type fuel consumption, kg/t, of unit asphalt mixture construction in asphalt pavement construction is calculated;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

is the CO2 emission factor per type i fuel, kgCO 2/MJ.

4. The method for measuring greenhouse gas emissions according to claim 1, wherein the step (40) of determining greenhouse gas emissions in the warm-mix asphalt mixture production stage comprises calculating greenhouse gas emissions in the warm-mix asphalt mixture production stage according to the following formula:

E^* _M＝E^* _{FC_M}+E^* _{Elec_M}，

wherein,

${E^{*}}_{FC\_M}={\mathrm{\Σ}}_i^{*}{{\mathrm{FC}}^{*}}_{M,i}\·{\mathrm{NCV}}_i\·{\mathrm{EF}}_{{\mathrm{CO}}_2,i},$

${E^{*}}_{Elec\_M}={{\mathrm{EC}}^{*}}_{M,Elec}\·{\mathrm{EF}}_{{\mathrm{CO}}_2,Elec},$

in the formula:

E^* _Mthe total emission of greenhouse gases generated in the production stage of the warm-mixed asphalt mixture is g/t;

E^* _{FC_M}the discharge amount is kg/t generated by consumption of fuel in asphalt mixture production of a warm mix asphalt production unit;

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

NCV_iis the calorific value of the unit i type fuel, MJ/kg;

CO as fuel of type i₂Emission factor, kgCO₂/MJ。

E^* _{Elec_M}The discharge amount is kg/t generated by the electricity consumption of the mixture in a unit of asphalt mixture production;

EC^* _M,Electhe electric quantity of a power grid, MWH/t, consumed by asphalt mixture production units;

CO as unit of grid power₂Emission factor, kgCO₂/MWH。。

5. The method for measuring greenhouse gas emission according to claim 1, wherein the step (50) of determining greenhouse gas emission in the warm-mix asphalt mixture construction stage is to calculate greenhouse gas emission in the warm-mix asphalt mixture construction stage according to the following formula:

E^* _C＝E^* _{FC_C}，

wherein,

${E^{*}}_{FC\_C}={\Σ}_i{{\mathrm{FC}}^{*}}_{C,i}\·{\mathrm{NCV}}_i\·{\mathrm{EF}}_{{\mathrm{CO}}_2,i},$

in the formula,

E^* _Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E^* _{FC_C}the greenhouse gas emission amount, kg/t, is generated for unit asphalt mixture equipment fuel consumption in construction;

FC^* _C,ithe consumption of i-type fuel for unit asphalt mixture equipment combustion in construction is kg/t;

NCV_iis the calorific value of the unit i type fuel, MJ/kg;CO as fuel of type i₂Emission factor, gCO₂/MJ。

6. The greenhouse gas emission amount measurement method according to any one of claims 1 to 5, wherein the (60) calculation step of the greenhouse gas emission amount reduction amount of the warm-mix asphalt mixture is specifically to calculate the greenhouse gas emission amount reduction amount of the warm-mix asphalt mixture 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_yreduced volume (tco) generated for y year project activities₂)；

BE_yEmission baseline for y years (tco)₂)；

PE_yProject emissions for y years (tco)₂)；

E_MThe total greenhouse gas emission is g/t generated in the production stage of the asphalt mixture;

E_Cthe method is characterized in that the greenhouse gas emission amount, kg/t, is generated for a single mixture in the asphalt pavement construction;

E^* _Mthe total emission of greenhouse gases generated in the production stage of the warm-mixed asphalt mixture is g/t;

E^* _Cthe method is used for generating the greenhouse gas emission amount, kg/t, of a single mixture in the asphalt pavement construction.