Problem

The conventional means of roads construction requires heating of bitumen as well as aggregates which causes a high amount of air pollution due to the carbon emission and fuel burning. The hot mix is restricted to seasons and can't be used in rainy reason which causes a delay in execution of projects.

Solutions

CRRI-Bitchem Coldmix is an environment-friendly way of roads construction that leads to zero percent carbon emission and fuel saving up to 1500-4000 litre per km. Further, our product is 2-3 faster compared to conventional means as it can be used in any season including during rains.

Brief description

Cold mix is an alternate solution for roads construction, it is prepared by mixing bitumen emulsion and aggregate at ambient temperature, unlike hot mix which require a lot of energy consumption to heat the bitumen and aggregates. It is a bituminous mixture containing unheated mineral aggregate, water and binder (bitumen emulsion) prepared by a suitable device like a concrete mixer or cold mix plant or a modified hot mix plant. Cold mix technology is used in surface dressing, Pothole repair, Mix seal surfacing, Patch work, Premix carpet. The attributes of CRRI ColdMix Technology are: • Energy Saving- Carbon Emission – Co2 emission 3.5 times higher in the hot mix as compared to cold-mix(direct and indirect) as the concentration of Carbon Monoxide and carbon dioxide is higher in hot mix. • Fuel Saving - CRRI ColdMix Technology helps fuel saving of 1500 litre fuel per km which is equivalent to 4000 kgs of carbon dioxide. This is 50% less than hot mix. • No adverse effects on the health of the workers. Unlike, the other alternative, CRRI-BitChem ColdMix doesn't require pre-wetting of aggregates and can be used with dusty aggregates too.