A. Clive Houlsby, a leading authority on cement grouting methods in dams and large structures who maintained a widely consulted internet site called Rockgrout, died on Sept. 24 in Sydney. He was 82.HOULSBYHoulsby suffered from cancer, says a colleague, U.S.-based engineer Jim Warner. A former dam safety chief of the Water Resources Commission in New South Wales, Australia, Houlsby became a global consultant and lecturer in the 1980s.In the 1970s, he advocated for what was then a controversial change in the water-cement ratio for structural grout. While critics deemed his recommendation as a “heresy,” Houlsby's formula is now standard practice,
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.