Q:I want to build a house which is efficient and strong to withstand tornadoes. I prefer one made with concrete because the resource is so abundant. How good are foam block houses filled with concrete ...

Reporting from Atlanta and Washington — Weeks before the Deepwater Horizon explosion, oil company BP and subcontractor Halliburton were aware of test results showing that the cement mixture designed ...

Q: We recently noticed that part of the concrete walkway connecting our driveway with the front door has begun to tilt slightly in one direction. Is there anything we can do to make it level again ...

WASHINGTON — Weeks before the Deepwater Horizon drilling rig exploded in the Gulf of Mexico, tests pinpointed problems with the stability of Halliburton's cement foam used to seal BP's doomed Macondo ...

PHOENIX — Amid global climate change and a chronic shortage of affordable housing, local construction companies and nonprofits are taking innovative steps to make homes more energy efficient and ...

Weeks before the April 20 Deepwater Horizon explosion, oil company BP and subcontractor Halliburton were aware of test results showing that the cement mixture designed to temporarily seal the well was ...