Can I fill the foundation with parts? Integral time accounting for part filling

When preparing for the erection of a capital structure, the masters often ask themselves: is it possible to fill the foundation with parts and how does it threaten? Interest in this information arises, since filling the material with a foundation pit in the soil in one sitting requires considerable effort. You can not do without the use of specialized equipment, which is required for mixing an impressive volume of solution. Let's find out whether it is possible to fill the foundation with parts under the house?

Allowance for time intervals for concrete pouring in parts

Before we go directly to the question of whether it is possible to fill the foundation with parts, we need to pay attention to a number of important points concerning the time of hardening of concrete mixtures.

In total, two stages are distinguished here: gripping and solidification of the material. These processes have their own time intervals, which will be discussed later.

Setting time

To understand whether it is possible to fill the foundation with parts, it is necessary to talk about the features of setting the material. The specified process comes into effect immediately after filling the formwork with a concrete mixture. Seizure involves the formation of stable bonds between the components of the solution.

The process takes an average of 3 hours, but only if the ambient temperature is above 15 ° C. As for the maximum setting time, in some cases it takes 24 hours or more, in particular, at minus air temperatures .

Can I fill the strip foundation with parts? It is allowed to use the new pit to fill the pit with about 8 hours after the start of the setting process. In this case, it is necessary to lay a not too thick layer of the solution. Otherwise, defects may appear in the structure of the foundation.

Curing time

As already noted above, the second stage when pouring the foundation is its solidification. Until completion, the process takes place during the month. Only after the end of this period, the concrete will be ready to provide any thicknesses to its thickness. To explain such a slow solidification can be extremely limited access of air to the deep layers of the material.

Is it possible to fill the foundation with parts at the stage of solidification? Pressure on a semi-liquid solution in the foundation thickness can lead to the appearance of cracks on its dried walls. At the same time, some defects may be visually invisible. However, they will certainly make themselves felt after the completion of construction work. Therefore, fillings must be produced in small portions.

So, is it possible to fill the foundation with parts? This should be done only after the qualitative solidification of the previous layer. Moreover, before performing such actions, it is necessary to dry the surface of the material and clean it with a brush with a metal pile. Only after this, you can proceed to pour a new layer of mortar.

Application of plasticizers

Dense shrinkage of the solution when pouring the foundation is facilitated by the impact on its thickness by vibration. To avoid this work, plasticizers are added to the material. These substances increase the level of fluidity of the solution. Therefore, in case of their use, the voids in the material thickness are filled in themselves. Such a solution, in the final analysis, will allow to reduce the level of destructive influence of the next portion of the solution on the relatively solidified base when the foundation is poured with layers.

Horizontal and vertical fill layers

Can I pour the foundation for the bath in parts? Performing work is necessary, resorting to the creation of vertical or horizontal layers.

When the formwork is filled horizontally, the solution is poured into the prepared frame to half. Obligatory requirement - the height of the next layer of the solution must be higher or lower than the threads of the reinforcement, but not on the same line with the metal elements.

Vertical pouring involves dividing the excavation into areas using stable partitions. To ensure that the walls of the formwork are not damaged under the weight of the mortar, it is worthwhile to create a small sector in this area.

Methods of pouring the foundation parts

Is it possible to fill the foundation with parts with reinforcement? There are several ways for this:

1. "Hot seam" - the method is relevant if the next layer of mortar is planned to be laid in less than 12 hours. In this case, after pouring the first portion of the material, its surface must be covered with a roofing material or with a polyethylene film. Thus, the concrete will be compacted, but a dense crust does not have time to form on its surface.
2. "Cold seam" - the method is used when the time interval between the laying of the next layer is more than 12 hours. In this case, it is important to wait until the already filled mass of the solution has hardened. If only an unstable crust forms on its surface, the latter may not withstand the pressure during pouring, which will lead to the most unintended consequences during the operation of the foundation.

Helpful Tips

Having resorted to pouring the foundation parts, it is worth paying attention to a few points. First of all, you need to think in advance of each stage of the work. The entire area of the prepared pit is recommended to be divided into sectors. In addition, it is important to prepare in a timely manner the volume of solution needed to fill a given area.

Pour the concrete evenly over the entire area of the sector. When laying the material by the "cold seam" method, it is always necessary to remove the cement film that formed on the surface of the concrete, as it prevents the adhesion of the layers of the solution. You can remove it with a metal brush or a hammer.

Finally it is worth noting that when performing work in the cold season, the surface of the frozen layer must be cleaned beforehand of ice and snow.

Finally

As you can see, it's quite possible to fill the foundation with a concrete solution in parts. In some cases, it is simply impossible to avoid such an approach to the performance of work, in particular, in the absence of access to specialized equipment, which makes it possible to prepare material in large batches.

Pouring parts allows you to save budget, effort and time. In addition, layer-by-layer hardening of the material makes it possible to make the foundation as durable as possible, since in this case the solution hardens more effectively in the formwork sectors. The main thing is to observe certain rules in the process of work and not deviate from the time intervals between the stages of filling.