Severe water infiltration may occur from extensive cracks in a building's concrete or masonry foundation and walls. Kerotech provides comprehensive concrete and masonry evaluation using crack mapping and petrographic testing. This analysis not only evaluates microstructural elements and optical properties but also pinpoints the character and degree of defects and (or) decay.
Three types of cracks typically occur:
- lateral and porewater pressure (PWP)
- if a building (or any part thereof) sinks below the elevation of its original construction, settlement occurs. This can be due to any number of factors, including soil contraction due to moisture loss or the presence of sizable organic material in the soil beneath the structure.Lateral and porewater pressure (PWP)
- arbitrary groundwater fluctuations and seepage can cause damage to concrete/masonry foundations and retaining structures. So can leaking water or sewage pipes. Clay soils can be incredibly expansive, up to 20x their volume if saturated with water. One can imagine the destruction to a concrete slab should such an event occur. Using widely-accepted models and methods, we can foresee, minimize and mitigate any damage by quantifying PWP and lateral earth pressures.Shrinkage
- while concrete shrinkage cracks are normal since concrete shrinks as it dries and cures, excessive shrinkage can tear apart concrete. This shrinkage is most likely to occur at slab corners or foundation offsets.
The most damaging (and dangerous) cracks to concrete and masonry are diagonal, horizontal and "stairstep" cracks. All indicate structural problems. Kerotech can design many methods of repairing these concrete cracks, depending upon location and severity, using epoxy injection systems and (or) hydraulic cement and injection ports.