No spark fine stone concrete execution standard GB 50209 - 2010

GB 50209 - no spark fine stone concrete 2010 no spark fine stone concrete implementation of the latest national standard GB 50209 - 2010 no spark of cement mortar, misfire floor hardening the seam an agent, no spark and anti-static standard of fine stone concrete can technology call 13213116342 ( Li Gong) Consulting, for details please add customer service QQ - 447676452 for free! Total is 1. 0. 1 in order to strengthen quality management of construction engineering, uniform building ground engineering construction quality acceptance, guarantee the engineering quality, make this specification. 1. 0. 2 this specification is applicable to construction projects in the construction engineering ( Including outdoor aproll, open ditch, footfall, steps and ramps and other accessory works) Construction quality acceptance. Not suitable for heat preservation, heat insulation, super net, shielding, insulation, prevent radiation and anti-corrosion and other special requirements of building ground engineering construction quality acceptance. 1. 0. 3 building ground engineering construction in the contract documents, design documents, and other engineering documents requirement for construction quality acceptance shall not be lower than the provisions of this specification. 1. 0. 4 this specification should be with the current national standard 'architectural engineering construction quality acceptance standard' GB50300 systems. 1. 0. 5 construction ground engineering construction quality acceptance in addition to this specification shall be implemented, it should be in conformity with the relevant standards of the current national norms. 2 2 art language. 0. The ground (1 building ground building ground building The ground) And the ground floor ( Floor) The general. 2. 0. 2 layer surface course under construction of various physical and chemical effects directly the ground surface. 2. 0. Combined with layer 3 combined course under the surface with a structural layer via the middle tier. 2. 0. Four basic base course under the surface of the structural, including filling, isolation layer and leveling layer, cushion and soil, etc. 2. 0. 5 fill layer filler course sound insulation, heat preservation, in a building on the ground looking for structural slope and dark apply pipeline, etc. 2. 0. 6 isolation layer isolating course to prevent building on the ground all sorts of liquid or groundwater, moisture permeability effect such as ground formations; Only to prevent moisture from the surface, underground can be called moistureproof layer. 2. 0. 7 screed-coat troweling course in the cushion layer, on the floor or filling layer ( Lightweight, loose materials) On the whole, found the slope or strengthen the effect of the structural. 2. 0. 8 cushion under and pass ground load the base soil layer under structural layer. 2. 0. 9 foundation soil foundation earth layer ground at the bottom of the foundation soil. 2. 0. 10 shrink seam shrinkage crack preventing cement concrete cushion when the temperature decrease produce irregular contraction cracks of seam. 2. 0. 11 seam stretch stretching crack preventing cement concrete cushion when temperature rises in the contraction joint edge crush or hog and setting expansion joint. 2. 0. 12 longitudinal contraction joint lengthwise shrinkage crack parallel to the direction of flow process of concrete construction of contraction joint. 2. 0. 13 lateral contraction joint crosswise stretching crack perpendicular to the direction of flow process of concrete construction of contraction joint.