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  2. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    As hard rocks, concrete can withstand high compressive stress but not tensile stress. As a consequence, concrete is easily damaged when expansion phases are formed in its mass. The most ubiquitous, and best known, expansive phases are probably the iron oxides produced by the oxidation of the carbon steel reinforcement bars embedded into ...

  3. Concrete pavement restoration - Wikipedia

    en.wikipedia.org/wiki/Concrete_Pavement_Restoration

    CPP and CPR methods, developed over the last 40 years, are used in lieu of asphalt overlays and bituminous patches to repair roads when longer lasting solutions are desired. When installing pavers over top of an existing asphalt of concrete pad, there are three installation options: sand set, bituminous set, and mortar set. [1]

  4. Sulfate attack in concrete and mortar - Wikipedia

    en.wikipedia.org/wiki/Sulfate_attack_in_concrete...

    When it reacts with concrete, it causes the slab to expand, lifting, distorting and cracking as well as exerting a pressure onto the surrounding walls which can cause movements significantly weakening the structure. Some infill materials frequently encountered in building fondations and causing sulfate attack are the following: [2] Red Ash

  5. Column: LA's cracked, ruptured sidewalks are a scandal. Where ...

    www.aol.com/news/column-las-cracked-ruptured...

    A slab of asphalt that had been used to cover up sidewalk damage caused by the roots of an un-maintained tree had become embedded into the trunk and risen at a sharp angle. "We have the resources ...

  6. Expansion joint - Wikipedia

    en.wikipedia.org/wiki/Expansion_joint

    A joint replacing mortar with elastomeric sealant will absorb the compressive forces without damage. [4] Concrete decking (most typically in sidewalks) can suffer similar horizontal issues, which is usually relieved by adding a wooden spacer between the slabs. The wooden expansion joint compresses as the concrete expands.

  7. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    However, these pipes can become clogged or damaged, which causes excess water to put pressure on internal walls and basement floors. Water build up inside window wells, after heavy rain or snow, can lead to leaks through basement window seams. Window well covers can be used to prevent water from accumulating in the window well.

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