Sometimes relatively simple steps can be taken to correct or improve drainage problems. Asphalt is more easily resurfaced than concrete. However, some shortcomings of original design and construction can be difficult, if not impossible, to overcome entirely.
I have received different bids/proposals/recommendations from different contractors as to the scope of work. How do I evaluate different points of view from supposed experts?
Our expertise is in consultation and making sound technical recommendations based on your needs, preferences, and budget. Very often different points of view come from some combination of variances in technical knowledge, perspective on the pavement’s stage of the [...]
Crack filling is a bit of a double-edged sword. Cracks that are left unfilled allow water intrusion that can compromise the base structure of pavements. Most soils in the Bay Area have low R-values meaning they lose stability and [...]
Very small projects can be completed in one day while larger projects may take multiple days. Small to mid-size projects often have a phase/day for demolition and form setting and a separate phase/day for pouring and finishing. Most commonly [...]
The work can be phased to re-direct traffic during demolition, placement, and curing. If this approach is not practical, metal trench plates can be used to cover and protect new concrete while it cures. For some other applications, use [...]
Most concrete mixes are referred to by the amount of cement (the “glue” or binder) holding the aggregates together in each cubic yard of the mix. Most mixes for sidewalks, curbs, gutters, driveways, slabs etc range from 5 to [...]
Rebar serves several purposes. Dowels and longitudinal strands are simple means of typing together new concrete with existing so that they move together rather than independently. Rebar grids, commonly at 12”-24” on center are placed in load bearing slabs [...]
As a general rule, most sidewalks and driveway approaches do not contain rebar. With all concrete structures (whether slabs, curbs, etc) if there is vertical displacement at cracks, there is no rebar.
In general, yes. Good design and construction result in fewer cracks and more predictable and controllable location of them. Concrete structures generally consist of a combination of expansion joints to allow for expansion and contraction of the concrete and [...]
Given proper conditions (air temp, surface temp, sunlight exposure, wind, humidity, etc) many new sealcoat applications dry quickly and can be open to low to medium traffic within hours. If ideal conditions are not meant or the sealcoat will [...]