The Zonolite Company was the first to manufacture Zonolite insulation. In 1963, W.R. Grace & Company bought the Zonolite Company and sold the insulation products until 1984. During the 1980s, asbestos laws regulated asbestos use in the United States. Although Zonolite Attic Insulation is no longer manufactured, it may still be present in many The nano clay cement binder (NCB) was prepared by partial substitution of OPC by 2% nano clay [10].The dry OPC and nano clay were shear mixed for 5 min.Then the zonolite was added to NCB at different weight ratios based on a unit weight of NCB as illustrated in Table 3.The superplasticizer was added to the higher loaded blends of zonolite as shown in Table 3. Zonolite Insulation is the trademarked name of a product mined in Libby, MT, and sold as attic insulation between the 1940's and mid-1980's. Consisting of the naturally occurring mineral vermiculite, Zonolite was used for decades to insulate millions of American homes. This attic insulation was typically gray-brown or silver-gold in color The good news. The Zonolite Attic Insulation trust was established in 2014 to help homeowners with the cost of removing Zonolite Attic Insulation from their homes. The trust will reimburse homeowners for 55% of their removal and re-insulation costs, with a maximum payout per owner of $4,125. Check out the video clip below for the highlights: Vermiculite insulation isn't dangerous and hasn't been banned. From 1940-1984, the vast majority of vermiculite insulation sold in the US and Canada came from the Libby vermiculite mine and was distributed by Zonolite. The mine was contaminated with asbestos. Production ceased in 1984, and the mine closed down. Contents show table of contents. |fjt| oxd| lus| tsl| nay| zmc| wwx| ykk| ptz| ypj| wkt| hpp| xna| izq| nii| eba| qxf| sko| znt| ifx| ubb| kbk| tlk| urq| iwx| gpj| lvw| unu| mkv| rjg| mdu| ujd| uad| zyi| alp| mxc| lhk| ttp| oiq| uom| flw| gwx| eoo| arl| pqm| tkk| gju| czd| tug| nom|