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Canadian Wollastonite
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  5. CW - Aggregates

CW - Aggregates

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Over 20 million tonnes of high performance aggregates will be mined and processed over the life of the Saint Lawrence Wollastonite Deposit.  These performance aggregates are approved for use in high strength/durability concretes, HL1 superpave hot mix asphalt applications, as CN Class 1 railway ballast stone, and in environmentally sensitive waterfront and gabion stone applications.

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hot mix asphalt
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Superpave Hotmix Asphalt Stone

In 2011, Canadian Wollastonite’s (CW) ortho-gneiss ore was certified by the Ministry of Transportation for Ontario (MTO) for use in major highway surface construction. This ore is approved as an FC1 and FC2 DFC/Superpave and SMA friction aggregate and is listed on MTO’s “Designated Sources for Materials”.

CW’s ortho-gneiss is advantaged over many of the other sources in Ontario in that it is the province’s southernmost approved source of FC1 and FC2 aggregate.

Railroad Ballast

CW produces class 1 and 2 railroad ballast stone and is well located to support the Toronto-Montreal-Ottawa corridors.