In order to comply with the national “Eleventh Five-Year Plan†and the 2015 long-term plan, the energy-saving project will truly benefit thousands of families. Actively improving the quality of exterior wall insulation materials construction and controlling the quality of this part is also an important part of ensuring the quality of exterior wall insulation projects. 1. Construction conditions 1.1 The external wall insulation construction shall be carried out after the quality inspection of the basic wall engineering is completed. The quality of the base wall is in line with the requirements of the Code for Construction and Acceptance of Concrete Structure Engineering (GB50204-2002) and the Code for Acceptance of Construction Quality of Masonry Engineering (GB50203-2002). 1.2 Remove dust and oil from the base wall and repair the loose and cracked areas. 1.3 After the door and window frame is installed, the down pipe of the wall, various household pipelines and embedded parts have been installed. 1.4 Material preparation: YT inorganic active wall insulation material is supplied by the manufacturer to provide on-site mixing of dry mix. It should be transported on site as required, and measures should be taken to prevent rain and moisture. After the materials enter the site, the relevant personnel shall be organized to report according to the regulations. The other auxiliary materials shall be prepared on site for 30 days. 1.5 Construction equipment preparation: mixer, ash bucket, vertical transport equipment, horizontal transport trolleys, etc. Common plastering tools and plastering tools, pay-off tools, buckets, brooms, steel rulers, etc. 2, construction process 2.1 Process: Clean the base layer - set square, hanging vertical, elastic control line, blasting, mouth making, re-examination - wipe DY inorganic thermal insulation material - elastic grid line, open grid groove, inlay drip tank, insulation layer acceptance - outside Wall coating 2.2 Construction method: 2.2.1 Cleaning the base wall: The base wall must be cleaned, requiring no oil stains, dust, dirt, release agents, weathering, dirt and other dirt on the wall. The surface flatness of the base wall and the verticality of the facade are not allowed. More than 5mm. If the base wall is too dry and the water absorption is too strong, it should be sprayed with water and wet. The cast-in-place wall should be pulled in advance and sprayed. 2.2.2 sets of squares, hanging vertical, elastic control lines, ribbing, mouth making, re-examination: Elastic control line: according to the building façade design and external thermal insulation technical requirements, horizontal and vertical control lines and expansion stitches, decorative stitches, etc. in the wall surface. Hanging the baseline: hang the vertical reference steel line at the corner of the building's outer wall (yin and yang) and other necessary places. The horizontal line is placed at the appropriate position on each floor to control the verticality and flatness of the insulation layer. According to the requirements of the design drawings, the thickness control line is elastic. According to the thickness control line, the standard gray cake is made on the wall, and the insulation material is used as the gray cake. 2.2.3 Wiping YT inorganic thermal insulation material (1) According to the water ash water required for the slurry, generally according to water: powder material = 1: 1.5, can be adjusted according to the water absorption rate of different walls, the seasons and the construction requirements, to achieve easy operation, stirring, First put the water into the mixer, start the mixer, then slowly pour the YT insulation powder into the mixer after adding water, start the mixer for 3-5 minutes, and make the slurry into a uniform paste, which can be used. (2) The slurry must be ready to use and used up in about one and a half hours. (3) Clean drinking water must be used to prepare the slurry. (4) One layer of the prepared slurry is used, and the thickness is about 1 cm, so that the slurry is evenly and densely covered with the wall; the second time should be full of insulation slurry to achieve the design thickness and the surface is flattened. real; When the batch is divided into two or more times, the batch of water should be poured back to about 60% before the next time, and the method is similar to the plastering and leveling of ordinary cement mortar. After the insulation layer is applied, use the ruler to level the bottom up, low into the insulation material to fill the level, and then use the wooden tweezers to level. If the wall surface layer is a coating, the surface treatment of the insulation layer is required to be calendered with tweezers. If the wall surface layer is a tile, the surface layer treatment of the insulation layer is to use a tweezers to pull the hair. 2.2.4 Quality Acceptance (1) Guarantee project 1. The thickness of the insulation layer meets the design requirements; 2. Between each plaster layer and between the plaster layer and the base layer, it must be firmly bonded, free of delamination, hollow, and no cracks in the surface layer. (2) General items 1. The surface of the plastering layer should be smooth, clean, smooth, and the joints should be clear; 2. The surface of the ash on the corners, holes and slots should be neat and smooth, and the surface of the ash behind the pipe should be smooth; 3. The setting of the division joint should meet the design requirements, the width and depth should be uniform, the surface should be smooth, and the edges should be neat; 4. Where there is drainage, the drip line (slot) should be made, the water line (slot) should be neat and straight, the drip line should be high inside and outside, and the depth and width of the drip groove should not be less than 10mm; 3, matters needing attention 3.1 YT inorganic active wall insulation material on-site construction, it is strictly prohibited to add any additional materials. 3.2 The prepared slurry should be used as needed, and it should be used up to two hours. Never use it repeatedly. 3.3 During the construction of YT inorganic active wall insulation project and within 24 hours after completion, the temperature of the base and ambient air should not be lower than 5 °C. Avoid sun exposure during the summer. Construction is not allowed in windy weather and rainy days above level 5. 3.4 Improve the finished product, avoid the rain soaking and collision on the newly constructed wall, and keep the construction site ventilated and dry. When the summer temperature exceeds 25 °C, it needs to be sprinkled for maintenance; in winter, pay attention to antifreeze and strong wind; after each construction, it is necessary to clean the construction tools and mixing equipment in time to avoid affecting the next use. 4. Construction acceptance The construction of the wall energy-saving project shall comply with the “Code for Acceptance of Construction Energy-Saving Engineering Quality†(GB50411-2007) and “YT Inorganic Active Wall Thermal Insulation System Enterprise Standardâ€. Only the control of the construction quality of the external wall insulation material can ensure the function of the entire insulation system. In the construction, a clear division of labor and a system of special personnel shall be adopted. Each process shall have a clear technical disclosure, and shall be carried out in accordance with the established construction plan, in order to form the entire construction process without any loss of control, and ensure the realization of the expected objectives from the organization.
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