Deji Machinery: Production and Pavement Performance of Flame Retardant Asphalt Mixture

The flame-retardant asphalt mixture adopts flame-retardant modified asphalt，Improving the Flame Retardant Performance of Asphalt Pavement，It can change the asphalt pavement from flammability to self-extinguishing.，Improve the safety of road surface（In particular to a tunnel asphalt pavement.）。In that method, a flame-retardant efficient modify added to an asphalt mixture is adopt,——FRMAXTMConstruction process，No need to change the original production process，On the basis of ensuring the pavement performance of the original asphalt mixture, the flame retardancy of the asphalt concrete pavement is obviously improved.。

Production Process and Action Mechanism of Flame Retardant Asphalt

The process for the production of flame retardant asphalt mixture is as follow：The flame retardant modifier is added to the mixing pot，Melt and adhere to the surface of stone in the process of high temperature dry mixing，Dry mixing time increased from 5 seconds to 10 seconds，The wet mixing time is adjusted from 45 seconds to 40 seconds。The flame retardant modifier that melts during the wet mix is compatible with the asphalt，So that that flame retardant effect is achieve。

Mechanism of action：The flame retardant decomposes when heated，Absorb a lot of heat.，Break that heat transfer chain and lowers the surface temperature of the combustible，Isolating the contact of combustible materials and oxygen and diluting the concentration of combustible game。

Production of flame retardant asphalt mixture mixing station(Batch mixing is adopted in the mixing plant)

From the mixing plantFRMAXTMPutting the flame retardant modifier into a mixing pot，The flame retardant modifier and the mineral aggregate are mixed at 185℃Carry out dry mixing，The mixing time shall be properly increased by 3% on the basis of the normal mixing time of the non-flammable additive～5 s。

Will have been heated to 175℃The hot modified asphalt is added into the mixing pot according to the specified dosage.，The wet mixing time is 3% less than the normal mixing time of the non-flammable additive～5 s，To mix evenly and consistently、No white material、Subject to uniform coating of aggregate with asphalt。

The factory temperature of finished materials is controlled at 170-185℃，Open traffic road surface temperature not higher than 50℃。

Paving and rolling shall be carried out according to the conventional construction requirements.。

As a professional manufacturer of total solutions for pavement construction，Deji Machinery has always insisted on promoting the healthy development of the asphalt industry.，Special attention is paid to the fire safety of asphalt pavement in tunnel engineering during the construction of asphalt mixing station.，Strive to build an ecological circle of engineering mixing industry with the industry。

The original creator：Shi Lei

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