176. The statement about the quality management of high-pressure jet grouting composite foundations is wrong ().
A. Before construction, the quality of cement, external admixtures, etc. should be checked. During construction, the construction parameters such as pressure, cement slurry should be checked. After construction, the pile strength and pile position should be checked. Before construction, the slurry ratio should be checked. The concrete structure sub-part project can be divided into ( ) sub-projects.
A. Formwork
B. Rebar
C. Concrete
D. Support
E. Prestress
178. Regarding the statement about concrete sub-engineering , the correct one is ().
A. When cement enters the site, its strength, stability and settling time should be re-tested.
B. Test pieces of concrete strength should be randomly selected at the pouring location of the concrete. When continuous pouring exceeds 1000m3, the sampling should not be less than once for every 300m2'. Samples should not be less than once for each floor
E. At least two groups of specimens should be left in each sample. After the roof waterproofing project is completed, visual quality inspection and post-rain observation or () test should be carried out, and there should be no leakage or water accumulation on site.
A. Closed water
B. Strength
C. Water swelling, water storage
D. Air stool
180. In roofing projects, the parts that should be inspected for hidden projects are ().
A. Steam insulation and exhaust measures for insulation layer
B. Sealing treatment of joints
C. Base layer of coil material and coating waterproof layer
D. Rigid protective layer
E. Additional layers in areas prone to cracking and seepage on the roof
181, project management planning should include ().
xinyuanchuangshui
A. Project planning
B. Management planning outline
C. Project management implementation planning
D. Project inspection
E. The inspection of project planning should include
