Q&A / 

DEAR TIM: I work at a smaller municipal airport and need your help. The concrete inside some of the plane hangers is crumbling at the straight lines where one giant slab of concrete touches up against another slab. There’s a metal strip in between the slabs if that makes a difference. What’s the best way […]

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DEAR TIM: I live on the upper floor of a converted villa. The access is by a stairway at the side of house. There is a closed door for garden tools under the stairs. Water is coming in to the garden shed from above and the wall near the stair is damp for about two […]

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DEAR TIM: How can I match the stucco finish on my eighty-year-old front porch? I tried using white Portland cement and buff sand, but as you can see in my photo, the results are atrocious. I added some dry cement pigment to try to get a match and it just didn’t work. I noticed the […]

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DEAR TIM: I’ve got an odd problem. I have concrete spalling on a sidewalk that leads from my concrete driveway to my home. The concrete driveway and sidewalk were poured at the same time. The driveway is in great shape, but the sidewalk has all sorts of places where the top surface of the concrete […]

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DEAR TIM: We’re having a problem with the front porch on our home that’s forty-four years old. The outside corner of the poured concrete porch is curving up lifting the post that’s supporting the roof. There’s no tree or roots that could be to blame. The brickwork under the porch that connects back to the […]

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DEAR TIM: I spent some time at your AsktheBuilder.com website but couldn’t locate the exact video that answers my question. There’s a wide ugly gap between my concrete outdoor patio slab and the slab my house is built on. I’m trying to determine whether to caulk the crack or fill it with some cement-based patching […]

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DEAR TIM: When it rains or snow melts, I have large water puddles on the concrete sidewalk in front of my house. The puddles have at least 2 inches of water at the deepest point. This sidewalk in parallel with the city street that has a modern rounded curb. It's dangerous in the winter as […]

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DEAR TIM: I own a diner where decorative concrete block forms the lower part of the exterior walls. At the front of my building, a wing wall extends away from the building. Some of the solid concrete block are crumbling away to nothing while others adjacent to them appear to be in perfect condition. The […]

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Cheri Bednarck lives in  McAlester, OK. She's got a driveway issue and needs a repair. Here's what she told me: "My property sits on a sandbar. My driveway has been cracking and slipping for years. During the latest downpour a large undermining area has washed a lot of the sand between the driveway and the street. […]

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Bernadette Snoussi lives in London, England. She's got a problem with an older decorative garden wall that's in need of repair. Here's her description, but I think the wonderful photo she sent does a superb job of telling the tale: "Hi. Could you please tell me whether it's possible to apply new concrete plinths over the […]

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