Natural resources of Quebec

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Monograph

Identifikator:: 1796289558

URN:: urn:nbn:de:zbw-retromon-181093

Document type:: Monograph

Title:: Natural resources of Quebec

Edition:: Rev. ed.

Place of publication:: Ottawa

Publisher:: Natural resources intelligence service

Year of publication:: 1929

Scope:: 132 p; illus., maps

Digitisation:: 2022

Collection:: Economics Books

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Document type:: Monograph

Structure type:: Chapter

Title:: Chapter V. Minerals

Collection:: Economics Books

38 NATURAL RESOURCES OF QUEBEC to a red colour. They are chiefly used in the manufacture of cement, brick, field drain-pipe, hollow building blocks, fire-proofing brick, and sewer pipe. Brickmaking.—Brickmaking is an old industry in the province of Quebec. Fortunately, such vast deposits of clay exist throughout the St. Lawrence valley that material for construction will never be lacking. The wooden house, successor to the stone house, is now giving place to brick, and the demand for clay products must continue to increase. Face bricks of the finest quality have been manufactured for the past 10 vears at Montmorency and for 25 years at Laprairie. The brickmaking industry in the province increased both in quantity and value of production in 1927. This was due chiefly to the construction of factories, pulp and paper mills, power development plants, and resi- dences. The total value of stock produced from domestic clays and shales amounted to $2,336,677. The chief centre of the brickmaking industry is at Laprairie where several plants have an output of 20,000 bricks an hour and produce com- mon, face, and fancy brick, smooth face or rustic, and of various colours. Brick is manufactured from shales on a large scale at Boischatel, near the city of Quebec, where common and face brick of various shades and finish are made. At Scott Junction a large company produces 50,000 wire-cut brick a day, having three cylindrical perforations one inch in diameter perpendicular to the large face. Advantages are claimed for this type of brick in drying properties, lightness and strength. At Deschaillons, Lotbiniére county, where a number of individual plants are in operation, there exists a large bed of stratified clay having a different origin from any of the low-level clays on the south side of the St. Lawrence. It is of good plasticity, easy to handle, dries quickly in a temperature of 150 degrees Fahrenheit without cracking, and makes the best of common bricks of hard red body with a good ring. The plants located at Deschaillons have the added advantage of wharfage and schooner transportation. oo At L'Islet station, on the Intercolonial railway, several plants manu- facture building brick of high quality from a deposit of varied stratified clay. There are other important brick-vards in the province. all of which ise clav as raw material Kaolin or China Clay.—One of the most valuable of all residual clays is that known as kaolin or china clay, white in colour, composed nearly of silica, alumina, and chemically combined water. The only workable deposit of kaolin, so far known in Canada, occurs at St. Remi d’Amberst, about 70 miles northwest of Montreal, where it is found in unexposed veins of varying width. When the raw clav is washed free

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