Whether the construction of the elevator cable is required

When pouring concrete is how to put the tube

Answer:

First, the method of placing the tube: the pipe is poured before the concrete is laid on the cloth, fixed on the template or steel, pouring a need to install a class at any time to adjust its position. Second, pouring concrete process: 1. According to the ratio of each plate to determine the amount of various materials, aggregate moisture content should be measured in time to adjust the mix of water. 2. Loading sequence: generally first stone, and then install the cement, and finally down the sand. When the additive is added, the powder admixture should be pre-processed into the small package according to the amount of each plate (plastic bag is appropriate), when used with fine coarse aggregate at the same time; liquid admixture should be the same amount per water and water Stir into the mixer. 3. Mixing time: In order to make the concrete stir evenly, since the whole mix into the mixing cylinder to start the discharge of concrete until the beginning of the concrete mixing time is 90 seconds (1.5 minutes). Third, the icon:

Import the ladder of the cable protection network should be installed flat, smooth sleek transition. When the cable is hooked, the anti-hook wire should be installed on the corners of the rails from the rails, and the wire should extend from the bottom pit to 1000mm above the center of the cable.

Do not need to! . the construction site elevator cable is relatively thick, is dedicated; . construction lift during the cable will rise and fall, in the elevator landing at the bottom of the casing if the cable, the cable will be disrupted, and the next lift will cause A certain winding, easy to cause an accident; . the construction of the elevator cable in the installation of a dedicated cable guide and storage device.