Located on Route 2 in northern Worcester County, Templeton is a long distance from the long-identified source of pyrrhotite-contaminated concrete: the J.J. Mottes Concrete Co. and its Becker ...
Once his concrete started crumbling, he says it went downhill fast. It happened because of pyrrhotite, a naturally occurring mineral found under much of central and western Massachusetts.
The prisms were constructed from concrete or ceramic blocks (hollow core or solid) and mortars with low strength and high entrained air content. Three types of mortars were tested, one dry pre-mixed ...