Details: description of item (with brief specification and reference to book of speccification) manufacturing & installation of 1.5 meter height of mono absorbent acoustic/noise barrier at 04 (four) lane rob between ic/2t gohri phatak between shantipuram to phaphamau on soraon road, prayagraj (acoustic/noise barrier with sound absorbing material confirming to valid en certification for manufacturing the noise barriers as per the en 1793 & en 1794 and as per irc guide lines of noise barrier specifications. acoustic/sound barrier should be arai approved (the automotive research association of india). all structural members to be used in these acoustic/sound barrier is to be galvanized as per proper is standard. water repellent sound absorbing rockwool sandwiched between gp shells is to be used) (quantity 904x1 .5 = 1356 sqm.) as per bill of q
Sector: Infrastructure