Term: grout (architecture)
a construction method that employed a synthetic wet mixture of materials which dried into stone-like hardness. The early use of grout in Wisconsin was a noteworthy innovation. In 1844, Joseph Goodrich developed a lime-sand-gravel-water mixture that was hardened in wooden forms. His so-called "grout" method enjoyed limited popularity in the Rock County area, particularly in Milton where Goodrich lived. The Goodrich method used local materials in the proportion of one bushel of lime for every seven or eight of gravel. According to Goodrich, the method was durable and relatively inexpensive. Although the grout method was never widespread, grout buildings were built outside the confines of Milton. The diffusion of the technique was no doubt due, in part, to Goodrich himself. As the proprietor of the grout Milton House, a popular "temperance inn" and stage stop, Goodrich was able to use his place of business as an advertisement for his favorite method of construction. Known locally as the "gravel man," Goodrich discussed his ideas in the local newspapers as early as 1846 and through private correspondence. View more information elsewhere at wisconsinhistory.org
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[Source: Cultural Resource Management in Wisconsin (Madison: State Historical Society of Wisconsin, 1986).