Said outdoor wood-plastic composite flooring (or decking) and difficult to crack warp water resistance Beautiful and durable, easy to maintain, and show good development in the construction of urban landscape Situation In engineering practice, the wood-plastic materials have been used in a number of important Construction projects, such as with outdoor leisure area of Shanghai World Expo China Pavilion of World Expo Axis landscape Avenue, Finnish Museum of the external walls of the Beijing Olympics Bird’s Nest outside the pedestrian path.
Wood plastic composite production technology is maturing, and their applications much faster than The speed of their research, but the study of the construction specification is quite scarce, serious Restricts the widening of the field of WPC applications and further development of production technology In actual use, wood as an outdoor landscape materials need to withstand the use of different field Together and use of environmental test, the construction of a direct impact to the wood-plastic materials. Life expectancy of more security should be to ensure that the new materials in engineering Necessary, to carry out the construction technology of wood-plastic landscape to this article through the field test Review wood plastic floor of the construction process, combined with a wood-plastic composite materials research, to explore the wood-plastic Floor paving technology.
On the concrete floor, directly to the keel lying on the ground, or Long Bone with the support block support, the support blocks to determine the height according to user requirements.
(1) wood-plastic keel laid directly on the concrete floor , the available expansion screw Nail along the keel centerline fastening to concrete. The keel should be kept level, such as to The surface is slightly uneven available cutting a good small pad of the wedge-shaped wood-plastic wood plastic keel pad level. Wood Plastic keel center spacing is generally not more than 35 cm for 5 to 15, and the expansion joints between the wall mm. Keel end butt joints need to stay around the 10 mm spacing, in order to keel The length direction of stretching and drainage. Should pay attention to the end to end joint between the keel row and the row The Department should be staggered to avoid along the same line. Basic flatness, or the need to lift High keel on the sides to adjust the elevation angle code (L-shaped angle iron) fixed.
(2) is not allowed on the concrete floor with expansion screws, such as the roof garden Construction, in order to prevent roof leaks can not use the expansion screw directly to the keel fastening in the coagulation Land surface, or user requirements keel booster, application support block keel support.
(1) to determine the direction of floor coverings according to user requirements, determine the laying of the keel Direction. Depending on the length of the keel, rational arrangement of the fixed location of the keel. Keel pavement Drain trench should be reserved for the keel between the margins no larger than 35 cm.
(2) as far as possible on the floor and keel vertical, because the perpendicular distance between the keel Large, can reduce the the keel dosage to avoid wastage. In special applications, such as floor And keel into a 30 °, 60 °, 45 ° angle, the need to reduce the distance between the keel. If you need railings Column, railing column should be directly fastened to the keel, do not direct fastening to the floor.
(3) all grass-roots acceptance before entering the construction of surface flooring. Keel To maintain the level of available foot level, line level to measure the flatness of the keel; households Outside the large area of pavement, the choice of 100mm × 100mm × 6000mm aluminum alloy Flatness on foot detection keel; the the keel pavement, the flatness should not exceed 2mm/2m.
(1) expansion and contraction and floor spacing
Wood-plastic flooring expansion and contraction with temperature changes occur, recommended roughly The same temperature, the plate mark, cut and stored. Wood plastic floor coverings, the spacing required Consider the expansion coefficient of the pavement temperature, the length of the wood flooring, wood flooring and the Local temperature difference between day and night. Between different time periods pavement of wood-plastic flooring end Distance may vary in length, therefore, recommended that a unit of wood-plastic flooring laid After the same time, fixed-length, at the same time using hand-held stone cutting machine to cut Board end of the floor end to maintain the same spacing. The laying of wood-plastic flooring is required to reserve the right spacing, in order to facilitate the expansion and contraction and ventilation and drainage. Pavement should pay attention to the spacing of the two floors on the side of general 3 ~ 8 mm; set aside 1.5 to 3.0 mm expansion joints between the 2-block floor face; floor face with the Stay of 5 mm wall between expansion joints. The floor of the location of the seams must be staggered.
(2) pay attention to the quality and construction of the screw
All screws should be rust treatment, or use stainless steel screws. In addition to selection of special Special screws, screw wood-plastic flooring should be pre-drill pilot holes. Guide Hole diameter should be not more than 0.8 times the screw diameter; recommend the use of electric screwdriver once Screws screwed in place, repeated screw rotation  is strictly prohibited. Screws fixed wood-plastic solid Core flat floor, the center screw should be located away from the edge of the wood-plastic plate about 20 mm.