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More stories about Aggregates

  • Shared Septic Systems

    High water tables and poor soils preclude the use of conventional sewage treatment methods on some new and existing house sites. One solution is a system that combines a sand filter and shallow drainage field designed for use by more than one household.

  • Q&A: Removing Latex Paint

    Q: I have trouble removing old latex paint. It doesn’t scrape well and it gums up sandpaper. What’s the best way to do this?

  • Q&A: Sanding Cupped Floors

    Q: Recently we installed a new oak strip floor during renovation of an old unoccupied house, and now the floor has permanently cupped. The house is built over a fairly damp crawlspace and has diagonal board floor sheathing. The original yellow pine flooring was badly damaged by termites, so we laid...

  • Q&A: Strength of Concrete Mix

    Q: Many years ago, a concrete contractor gave me a recipe for mixing concrete by hand or machine. It is the only mix I have ever used. Is there any way to know how strong the mix is? I use 1 part Portland cement, 2 parts clean sand, and 3 parts clean crushed stone (7/16 inch or 3/4 inch, depending...

  • Pressure-Treated Foundation Repair

    With cold weather setting in, this upstate New York remodeler decided to use a pressure-treated wood foundation to replace a crumbling cement-block wall in a hillside garage.

  • Compacting Problem Soils

    Improper soil compaction leads to a host of concrete failures, from cracked pavements and slabs to leaking basements and settling foundations. A concrete expert tells how to avoid these problems by identifying the soil type, using the proper amount of moisture during compaction, and choosing the...

  • Alternative Septic Systems

    It’s getting harder to find suitable soil for in-ground septic systems. A consulting engineer examines two new technologies for handling residential wastewater.

  • Q&A: Slab Over an Existing Slab

    Q: What type of preparation work is needed before placing a 4 1/2-inch-thick topping over an existing slab?

  • Specialty Finishes for Concrete Slabs

    Exposed concrete slabs don’t have to look dull and gray. Here’s how to use dyes and stains, stamped patterns, and exposed aggregate to create an attractive and durable finished slab.

  • Q&A: Matching Old Mortar

    Q: In an upcoming remodeling project, we will be uncovering a section of hidden stonework that will need to be repointed to match the existing exposed stonework. How do we go about matching the color of the mortar?