Nanchang Shu waterproof Engineering Limited is an independent legal entity to undertake a large number of professional water trap, waterproofing, repair water and other projects, such as: large cracks leaking underground garage, tunnels, culverts, mine leaks, all kinds of roofing trap engineering, toilet leaks, water sealing, basement waterproofing plugging, has a wealth of experience in construction steel tile water corrosion, ground water engineering, plant water trap works, roll roofing projects and so on. Crack control measures (1) waterproof plugging precautions to prevent coagulation disabilities pavement cracks, should be formulated in strict control of water-cement ratio of concrete and cement, select the appropriate graded coarse aggregate and sand ratio. Pouring Concrete and road in front of the grass-roots level and templates wet, avoid concrete absorbs moisture. Vibrated concrete should be strictly in accordance with the standard operation to prevent excessive vibration waterproof mortar gather surface mortar layer thickness control guillotine in the 2- a 5mm range. Finished pouring concrete pavement should be covering with wet material, serious water conservation, to prevent strong winds and exposure. When a large area of ??pouring concrete pavement, some should be pouring, curing period, the hot season to strengthen the surface water conservation. Nanchang Shu waterproof Engineering Limited is an independent legal entity to undertake a large number of professional water trap, waterproofing, repair water and other projects, such as: large cracks leaking underground garage, tunnels, culverts, mine leaks, all kinds of roofing trap engineering, toilet leaks, water sealing, basement waterproofing plugging, has a wealth of experience in construction steel tile water corrosion, ground waterproofing exterior waterproofing repairs, plant water trap works, roll roofing projects and so on. Precautions ① structure combined with the thickness of the concrete pavement design should meet the transport needs, especially heavy trucks, overweight vehicle sections. ② avoid high-temperature operation, the temperature should be controlled below 35 ℃, attention DIF and superplasticizer and other additives to keep the water; avoid windy weather construction, to prevent excessive loss of surface water; after the final setting of concrete covering sprinkler maintenance to prevent excessive water loss, resulting in shrinkage cracks, concrete curing time by increasing the strength of the case may be waterproof maintenance program, not less than seven days. ③ construction joints as provided in the structure, but when the inevitable, should ensure that construction joints on both sides of the panel seams vibration compacting concrete, and there is sufficient interval to form a strength. When connecting with the original concrete pavement, the road should be used to connect the original mechanical joints neatly cut and remove surface dust and loose gravel, water will be cleaned and then connecting joints according to specifications for seams. ④ strict control of concrete time and slit slit depth. Gravel concrete compressive strength is generally 6.0 to 12. OMPa to kerf to cut neatly, without fragmentation for the degree, conducted as early as possible, especially in the summer, the temperature difference between day and night, should pay more attention; when the continuous casting length is longer, while less kerf equipment, in a / 2 lengths at the first cut, then cut segments. Kerf depth should be to the thickness of 1/4 to 1/3 or more a little toilet water maintenance | Jinxian waterproof | Shu steel roofing waterproofing maintenance provided by Nanchang Shu waterproof Engineering Limited. Nanchang Shu waterproof Engineering Limited (www.ncsrfs.com) strong, credible, in Nanchang, Jiangxi construction industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shu waterproof and you hand into the brilliant, for a better future!