History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c29.s2.t3.4

v1.c29.s2.t3.4

In *Yajurveda-Saṃhitā* and *Śatapatha Brāhmaṇa* hair of goat, very fine sand, pounded rock and iron filings are mentioned as degressant material. These materials help in holding the non- plastic ingredients of the clay together. Use of *Ukhya-bhasma* is mentioned as an additive to mud for making bricks in *Baudhāyana Śulba Sūtra*. Most of the bricks are rectangular, yet bricks in various shapes and types: square, wedge shaped, L Shaped, decorated and inscribed have been used according to their specified use.