How to pour concrete correctly?

Concrete structures are very popular. No wonder, after all, the end result is a solid and durable construction, which is not afraid of negative environmental factors. Concrete pouring technology involves the use of special equipment. Capacious mobile concrete mixers are indispensable for large construction projects., located on trucks. For ease of filling, a special abrasive hose for concrete supply. You can purchase this on the Gumatech.pro website from the leader of the Ukrainian market of rubber products. Consider the stages of pouring the solution. We will not dwell on the preparation of the solution, assuming, that the reader is potentially familiar with it.

Layout check and alignment

These are inevitable steps., to be completed, before pouring concrete. These steps will adjust the accuracy of the work.

1. The first stage of the check is the alignment of the slab formwork. Typically, floor levels are checked with a soft (unrecorded) formwork.
2. After checking the reinforcement work, the removal of reinforcement work is carried out. At this stage, the placement of columns is mainly checked., as other spacings are automatically closed when beam formwork is set.
3. If the column reinforcement is not aligned with the grid lines or if they are not vertical, then before starting work, you need to fix it.
4. Then the marking of the plate will be made. Offsets, marked on the slab formwork, used to perform any marking work.

After completing all the checks, we proceed to pour concrete.

Pouring concrete

It is necessary to take into account the basic techniques and methods of pouring the mixture. Of these, we first discuss the key aspects, things to consider when pouring concrete.

• Setting time of the solution: it is necessary to pay attention to the initial and final setting time when pouring the solution. Usually, the initial setting time of concrete is approx. 45-60 minutes. However, it can be modified, adding additives. The setting time can be increased according to project requirements and depending on the testing of mixtures..
• Formation of cold seams. The process occurs when mortar over concrete, which began to harden. Hence, before setting, it is necessary to pour the mixture. When the concreting of a large pour is in progress, before setting the existing layer, the new layer will be filled. This avoids the formation of cold seams..
• Fill pattern: when it is necessary to concrete a large volume of concrete mix, a pouring diagram is prepared to plan the sequence of pouring the solution. Concrete pouring will be carried out in the planned sequence to avoid the formation of cold joints.
• Compacting concrete: Proper compaction of concrete is required to achieve the required quality and strength. To achieve the desired effect, use a special vibration device. The vibration period should be appropriate for the thickness and type of mixture. Compaction must be carried out after the entrapped air has been removed and the concrete has been properly compacted..
• Self-compacting concrete: in special cases, when it is difficult to compact the concrete manually, self-compacting concrete is used. Self-compaction of concrete is achieved due to the design of the mixture. Deep and large foundations, concreting piles, etc.. performed with self-compacting concrete.
• Temperature control: depending on the volume of pouring, it is necessary to limit the temperature increase and control the temperature change on the concrete surface.

Final stage of work

Completion of concrete work takes place in several stages. After pouring the concrete, leveling is carried out. Finishing of the concrete can also be done at this stage..

Moreover, finishing work can be done, when the concrete hardens to such an extent, at which the power trowel can lay concrete.

Depending on the required concrete finish and taking into account unevenness of the concrete surface, finishing of concrete work can be done with plaster.