Vervanging van asfalt, putten, goten en aanbrengen van nieuwe belijning (thermoplast).
Lingeweg, Kersenboogerd, Hoorn.
Donderdag 9 t/m Woensdag 15 april 2015
MILLING, RECYCLING, RESURFACING and ROAD SURFACE MARKING
The entire gutter and asphalt layer be removed and renewed, so that the new asphalt layer will lay flush with the existing elevation of the curbs and or gutter. The existing pavement is removed, ground (broken up) into small pieces by a heavy-duty-machine (Wirtgen, asphalt cold milling machine) and then transported to an asphalt or concrete plant and incorporated into new pavement. So, the distressed road materials be reused for new roads, in fact, the tarmac used for this new local road (Lingeweg, Hoorn -Holland) is (in part) made up of reused asphalt. After the milling is completed, the existing surface is swept clean and a tack coat is applied. The tack coat bonds the new layer of asphalt to the existing underlying layer of asphalt. Lastly, a new layer of asphalt is installed.
Pavement milling (cold planing, asphalt milling, or profiling) is the process of removing at least part of the surface of a paved area such as a road, bridge, or parking lot. Milling removes anywhere from just enough thickness to level and smooth the surface to a full depth removal. There are a number of different reasons for milling a paved area instead of simply repaving over the existing surface.
Recycling of the road surface is one of the main reasons for milling a road surface. Milling is widely used for pavement recycling today, where the pavement is removed and ground up to be used as the aggregate in new pavement. For asphalt surfaces the product of milling is reclaimed asphalt pavement (RAP), which can be recycled in the asphalt hot mix asphalt (pavement) by combining with new aggregate and asphaltcement (binder) or a recycling agent. This reduces the impact that resurfacing has on the environment.
Milling is performed by construction equipment called milling machines or cold planers. These machines use a large rotating drum removing and grinding the road surface. The drum consists of scrolls of tool holders. The scrolls are positioned around the drum such that the ground pavement is moved toward the center and can be loaded onto the machines conveyor belt. The tool holders can wear out over time and can be broken while milling if highway structures like manholes are encountered while milling.
The tool holders hold carbide cutters on the drum. The cutters can be removed and replaced as they wear out. The amount of wear (and therefore the interval between replacement) varies with the type and consistency of the material being milled; intervals can range between a few hours to several days.
The drum is enclosed in a housing/scrapper that is used to contain the milled material to be collected and deposited on the conveyor. The spacing of the tool spirals around the drum affect the end surface of the road, with micro-milling having the tightest spacing.
ROAD SURFACE MARKING
One of the most common types of road marking based on its balance between cost and performance longevity, thermoplastic binder systems are generally based on one of three core chemistries: hydrocarbons, rosin esters or maleic modified rosin esters (MMRE). Thermoplastic coatings are generally homogeneous dry mixes of binder resins, plasticizers, glass beads (or other optics), pigments, and fillers. Their use has increased over paints mainly due to the performance benefits of increased durability, retro-reflectivity, and a lack of VOC solvents.
Thermoplastic markings are applied using specially designed vehicles. Usually thermoplastic marking mode should apply with equipment called road marking machine to coating traffic lines, and the road paint needs preheating by a device commonly called a preheater. The thermoplastic mix is heated in trucks to about 200 °C (400 °F) before being fed to the application apparatus. This is often a screed box or ribbon gun. Immediately after the thermoplastic has been applied, glass beads are laid onto the hot material so that they embed before the plastic hardens. These beads provide initial retroreflection. As the marking wears during use and the initial beads are lost, the beads mixed with the binder are uncovered, providing long term retroreflectivity. Most thermoplastic is produced in white and yellow colors, but other colors such as red may also be produced.
iPhone recorded
KWS, Freesmij, Buko, Vrijbloed, Reflectielijnen, Van Velsen Bodegraven, Bruil Ede, Stratenmaker, Asfalteren, Asfalt, Belijning, Tarmac, Asphalt, Resurfacing, Roadwork, Wirtgen, HAMM, Vogele, Vögele, cold milling machine, road surface markings, wegenbouw, Thermoplast, wals, walsen, machinist, asfaltwals, asfalteermachine, wegenbouwmachine, kleefauto, teer, plak, verdichtingsmachine, wegwerkzaamheden, Asphaltfräse, Strassenbau