Our road service division is comprised of professionals, specializing in T-cap grinding and paving of utility trenches, concrete flatwork, and other municipal work.
Alaniz Construction offers the following road services and trench solutions:
Cold-milling machine removes temporary fill over street trench
Milling/Grinding
Utilization of cold-milling machines to remove or grind existing asphalt surfaces has become commonplace in the asphalt industry, especially for removal of straightaway lengths. Cold-milling machines provide clean edges, large volume capability, narrow footprints (usually one lane with minimal intrusion into other lanes of traffic), conveyor removal of material into waiting trucks, and limited damage to adjacent asphalt surfaces. In addition, the milled material can be recycled.
T-Cap
Alaniz Construction's Road Services Division has met local municipal approval with our specialty trench paving. A section of the pavement wider than the slurry-filled trench is removed and paved back with asphalt, which bridges the top of the trench and connects the two outside edges of the trench. This repair is referred to as T-Cap because of its T-shape, if viewed from the side, and is generally specified by municipalities throughout the Bay Area. Vehicular weight is thus spread across a wider surface area and this helps prevent the trench from failing.
Grind and Pave
This is a specific form of Removal & Replacement, which consists of the removal of asphalt by cold-milling machines (or grinding of damaged/designated asphalt sections) and subsequent replacement with, and paving of, hot mix asphalt. The surface above the trench is milled, swept free of loose debris, tackcoated, and then paved. Often referred to as T-Cap, or specified by some municipalities to ensure proper strength over trenches, grind and pave is seen as an improvement over traditional trench repair.
Base Paving
Some municipal specifications call for a deep lift of asphalt paving, which requires the grinder to remove a deeper section of the street and leaves a deeper section of asphalt to be paved. This situation may occur when two or more trenches are within a certain distance of each other and failure to remove the intermediate section would cause the whole area to weaken. Proximity to a curb and gutter is among other reasons calling for base paving.
Close-up of cold-milling machine
(remaining asphalt in foreground and right rear)
Pave Only
Occasionally a customer will excavate a trench and backfill the trench himself. Pave only is the paving of the asphalt and may not include base work and base compaction. This work requires a tackcoat along the edges, re-compaction of the existing base, if applicable, and placement, paving, and compaction of the hot mix asphaltic concrete.
Bore Pit Repair
Some utilities are installed with the help of laser-guided horizontal boring devices. This approach may be less disruptive to local traffic, asphalt surfaces, and other utilities. Rectangular digouts spaced out along the bore line are often backfilled with base rock and capped with cold mix. The bore pits may be covered with trench plates and left ready for paving and compaction. Bore pits can be more costly to repair due to the smaller size of each repair (hand work) and the greater distances between each location (movement of equipment.)
Chip Seal
Utilizing a process in which the asphalt surface is sprayed with a viscous oil and granite chips are broadcast over the oil, the section is compacted with a pneumatic roller and the excess chips are swept up. Some specifications call for the section to be swept again in a couple of weeks. Chip seal is a time-proven pavement maintenance approach and is used in order to match existing street surfaces within communities whose streets are currently maintained by chip seal.
Concrete
Underground utilities must often cross curbs and gutters, sidewalks, approaches, and driveways to connect their services. Standard repair of these concrete sections are a basic service of the road services division. Experienced finishers replace and repair flat concrete structures to like-new conditions, often replicating specialty finishes. Services include demolition, forming, pouring, and finishing of concrete. Although time consuming, the concrete is often the last piece of the utility connection and the most visible to the customer, therefore treated with the most care and concern to detail. Read more about our concrete services.
Seal Coat and Slurry Seal
Seal coat is designed for parking lots, private roads and other low-volume applications while slurry seal is designed primarily for streets and high traffic areas. Slurry seal is a mixture of fine aggregate, asphalt emulsion and water, with filler sometimes added. The materials are blended in a pugmill, usually truck-mounted, and applied by a spreader box, all in one continuous operation. Slurry seals are often specified by municipalities to match existing asphalt surfaces.
Striping
Painting of indicator lines usually takes place after seal coating, overlays or other surface treatments. Prices are based on the number of lines, arrows, bars, symbols, stencils or lineal feet of paint applied. Standard colors include white, yellow, red and blue. Thermoplastic striping, bott dots and reflectors are also available upon request. Read more about our Line Striping and Curb Painting Services.