Budget of Road Marking Coatings Project
Budget of Road Marking Coatings Project
General knowledge of road marking
1. Marking width; generally 150 mm. The rest are 100 mm, 200 mm, 300 mm, 400 mm, 450 mm.
2. Marking thickness: 1.5-2.5 mm, 1.8+0.2 mm for urban pavement and 2.0-2.5 mm for high-speed pavement
3. The interval ratio when dashed lines are used (the first digit represents drawing long lines, the second digit represents interval length), the high-speed road surface is 6:9, the urban road surface is 4:6, and the rural road is 2:4, which is commonly referred to as the 69th, 46th and 24th lines.
4. Lane Classification
(1) Two-way two-lane: according to the regulations, there are two solid lines with two sides and dotted lines in the middle.
(2) Two-way four-lane: according to the regulations, there are four solid lines and one dashed line in the middle.
(3) Two-way six-lane: four solid lines and two dotted lines in the middle according to regulations
(4) Two-way eight lanes: according to the regulations, there are four solid lines with three dotted lines in the middle.
In order to save costs, some units remove the two outermost solid lines without drawing, and the number of solid lines above is reduced by two accordingly.
5. Pavement signs: "" means pavement signs; "_" means speed limit of 10 km; "Text, brief head" means Lane classification of words, arrows.
6. Zebra crossing
(1) Width specification: 450mm for expressway: 400mm for urban road:
(2) Length specification: > 3 meters, increment by minimum 1 meter:
(3) Intermediate interval: 600m
7. deceleration line
The requirements of the deceleration line are as follows: generally, the width of the deceleration line is 300 mm, divided into three layers or more, mainly distributed in downhill section, school entrance, tunnel entrance, dangerous section, etc., and the average number of layers is three layers of solid line.
II. Budget of Road Marking Project
1. Calculating the area of drawing lines
(a) Solid line area = length x width (width is generally 150 mm)
(b) dotted line area = solid line length x width x number of lines
(c) Zebra Line Drawing Area = Length x Width x Number
(d) Drawing area of deceleration line = length x 0.3 (width) x 3 layers x
2. Coatings for road marking. Primer. Calculation of Reflective Glass Beads
(1) On expressways, the marking thickness is 2.0 mm, and the dosage of paint: 200 square meters of cement pavement (5 kilograms per square meter). 180 square meters/ton of asphalt pavement (about 5.6 kilograms per square meter)
(2) In urban highways, the marking thickness is 1.8mm, and the dosage of paint: 220 square metres of cement pavement (4.55kg per square metre). Bituminous pavement 200 square metre tons (about 5 kilograms per square metre)
(3) The amount of paint used for marking is equal to the amount of paint used for the square unit of the road surface drawn by the area X of the marking.
For example, 500 mX5kg/m = 2 500 kg
(4) Primer dosage for marking
(a) When marking, 0.1 kg of base is required for 1 square metre. (No primer is used for marking new asphalt pavement)
(b) When customers purchase coatings, if they need to read at the bottom, a ton of coatings is usually matched with 25 kilograms of base.
(5) dosage of marking reflective glass beads
(a) When marking, 0.35 kg of reflective glass beads is needed for 1 square metre.
(b) When customers purchase coatings, if they need reflective glass beads, a ton of paint is usually matched with 750 kg reflective glass beads.
3. Construction speed: A set of marking equipment, which can draw 600-700 square meters (7-8 people) a day.