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China Paint Network
: August 12 at 11 p.m., Tianjin Tanggu Development Zone, an explosion occurred, the scene of the fire. As of the 14th, the explosion killed a total of 55 people; According to China Seismological Network, from the waveform record results, the first explosion occurred on August 12 at 23:34:6 seconds, near-seismic magnitude ML about 2.3, equivalent to 3 tons of TNT, the second explosion in 30 seconds after the type, near-seismic magnitude ML about 2.3 magnitude, equivalent to 21 tons of TNT.
shock, the original wall of the house and the new masonry brick layer because of the shock easy to stick not close, loose, shedding, empty drum or wrong seam phenomenon. Using an empty drum hammer, a progesometer for correction, supervision inspection frequency doubled and continued for 1 week to be inspected.
after the shock of the wall grass must be checked as soon as possible whether there are cracks, cracks. If there is a crack, remove the original wall base along the 3 cm-5 cm around the crack and use the wall seam telescopic net for mesh reinforcement.
decoration waterproof layer is easy to crack after the shock, especially cement mortar cold waterproofing process is more prone to problems. Because the coil has a good stretch, the general vibration will not affect the existing waterproof. Compared to other asphalt-based waterproof materials are
waterproof
, not easy to cause damage in vibration. The main advantage of flexible waterproof roof is that it is more adaptable to the foundation subsidon of the house, the house is affected by vibration or temperature, so it is recommended to use asphalt-based waterproof
coatings in areas prone to
.