2022 first-class construction engineer highway forecast test site pouring concrete, one construction finishing point prediction, long press and like + forward + evaluation continue to be updated, Wendang version click on my avatar and send a private message to me: 2022
1. Before pouring concrete, in addition to complying with the current " highway bridge and culvert construction technical specifications " JTG/F50-2011, comprehensive inspection and acceptance of anchors , pipelines and steel bars embedded in concrete should be carried out, and pouring can only start after meeting the requirements. When pouring concrete, it is advisable to use insert, adhesion or flat type vibrators according to different forms of the structure or components to vibrate. Effective measures should be taken to strengthen the vibration at the connection between the web of the box beam and the bottom plate and the top plate, the anchor area of the prestressed steel bundle and steel bars, and other parts where the steel bundle is dense with steel bars; when conducting concrete strength trial assembly and quality assessment, the compressive strength of the concrete should be measured with a standard cube size specimen with a side length of 150mm. The specimens are grouped with three pieces of the same age and are made and maintained under the same conditions. The compressive strength of each group of specimens should be measured based on the arithmetic average of the measured values of the three specimens.
