Slab shuttering work in the construction of a box culvert is the process that we undertake before installing the slab concrete and steel of any box culvert. Slab shuttering work is generally done by construction workers, but machinery is used to install some very heavy shuttering materials, such as hydra, crane, etc. In this article, we will learn in full detail about the slab shuttering work of a box culvert step by step.

step 1 – slab shuttering materials

In the first step of slab shuttering work, we find out the shuttering materials. These include MS shuttering plates, hunch plates, angle brackets, MS pipes, channels, verticals, bracing pipes, joint pins, bracket plates, U jacks, base jacks, etc. These are all the shuttering materials used in the slab shuttering work of a box culvert.

step 2 – shuttering on raft

In the second step of slab shuttering work, we first place base jacks on the verticals above our raft and then install each one with bracing of the same length. The installation process is very easy and is done by workers.

step 3 – slab shuttering slope

In the third process of slab shuttering work, we place joint pins on top of the verticals and determine the slope because the length of each joint pin is kept according to the slope of our slab. Construction workers use a measuring tape to determine the length in advance and cut the pipes accordingly.

step 4 – slab shuttering on top

In the fourth process of slab shuttering work, we place U jacks on top of the joint pins and install channels horizontally and vertically in each cell one by one. Then, we determine the slope again using a line cord. Construction workers carry out this process very carefully and safely, one by one.

step 5 – slab shuttering plates

In the fifth process of slab shuttering work for a box culvert, we place shuttering plates one by one on top of the channels. Ensure that the MS shuttering plates are laid with a specific gap between them. For the hunch part, hunch plates are manually installed by workers.

step 6 – slab shuttering oil

In the sixth process of slab shuttering work for a box culvert, we use shuttering tape to close the gap between two MS plates. After that, we apply shuttering oil thoroughly on the MS shuttering plates to make it easier to deshutter after the slab concrete has set.

step 7 – box culvert stretching materials and their uses

In the shuttering process of a box culvert, the main materials used are 1250 mm shuttering plates, 600 mm and 300 mm shuttering plates, hunch plates, 950 mm bracing, 3m, 2.5m, and 1.5m verticals. Additionally, MS pipes are used to support the slab shuttering, which are locked in place to ensure that the shuttering does not move or stretch under the load of the heavy concrete.

conclusion

In conclusion, the slab shuttering work for a box culvert involves several meticulous steps to ensure stability and precision. Starting from identifying and preparing the necessary materials, to the careful installation of base jacks, joint pins, and channels, each stage is crucial. The placement of shuttering plates, the application of shuttering oil, and the use of bracing and MS pipes to support the structure under heavy concrete load highlight the importance of careful planning and execution. This systematic approach ensures a sturdy and reliable shuttering setup, facilitating the successful construction of the box culvert slab.