Stability of Structure: 10 Warning Signs
Learn what stability of structure means, 10 warning signs of structural instability, common causes, and when building movement needs an engineer.
Practical construction guides for concrete, foundations, drainage, retaining walls, slabs, driveways, materials, repair methods, costs, and building details.

Learn what stability of structure means, 10 warning signs of structural instability, common causes, and when building movement needs an engineer.

Learn the concrete slump test procedure, apparatus, result types, typical slump values, and common mistakes to avoid during fresh concrete testing.

Quick Summary Concrete cracks when tensile stress exceeds what the mix can resist. Shrinkage, temperature swings, weak subgrade, overloading, and deterioration all…

Estimate concrete volume, bags, weight and cost for slabs, footings, piers and post holes with this easy concrete calculator. Use imperial or metric units and add waste allowance for a more realistic material estimate.

Patio pavers can be installed on concrete if the slab is stable, level, and drains properly. Learn 7 checks to make before installing pavers over an old concrete patio.