CN112177334A

CN112177334A - Concrete pouring process

Info

Publication number: CN112177334A
Application number: CN202011006646.2A
Authority: CN
Inventors: 邓志龙; 邓宁天; 熊文杰
Original assignee: Hunan Hechuang Muck Transportation Co ltd
Current assignee: Hunan Hechuang Muck Transportation Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-01-05

Abstract

A concrete pouring process comprises the following steps: s1: placing the finished concrete in a pouring field, and remotely monitoring the pouring field; s2: and a monitoring room is used for processing the whole vehicle material, and the slump of the concrete is adjusted by adding a water reducing agent. On one hand, the slump condition of the concrete can be accurately obtained through remote monitoring, timely adjustment is carried out, the segregation or layering phenomenon of the concrete is effectively avoided, the water content of adjacent layers is kept the same or close to that of the adjacent layers, the working efficiency is greatly improved, and new concrete does not need to be re-prepared; on the other hand, a monitoring room makes a processing instruction on the whole vehicle material, and the slump of the concrete can be improved by taking a method of adding the water reducing agent for multiple times into consideration according to the retention time of the concrete, so that the concrete is prevented from being segregated and layered, and the composition is prevented from changing; moreover, free water and foaming of the vibrated concrete can be avoided.

Description

Concrete pouring process

Technical Field

The invention relates to the technical field of concrete construction, in particular to a concrete pouring process.

Background

The existing concrete preparation process generally comprises: the method comprises the steps of proportioning the ingredients of the aggregate and the admixture according to production requirements in advance, uniformly placing the proportioned ingredients of the aggregate in a funnel for mixing, conveying the proportioned ingredients of the aggregate to a stirrer through a conveyor, uniformly placing the proportioned ingredients of the admixture in the funnel for mixing, pouring the admixture into the stirrer after the aggregate is conveyed into the stirrer, performing dry mixing on the stirrer, pouring water and an additional additive into the stirrer, performing wet mixing on the stirrer, uniformly mixing to form finished concrete, unloading, and conveying the concrete to a building construction site through a transport vehicle for slump adjustment of the concrete. However, on the one hand, when the slump of the concrete is adjusted in a pouring site, if the site is large, the on-site adjusting personnel cannot see the whole condition of the concrete, and once the adjustment fails, the segregation or layering phenomenon occurs, so that the concrete needs to be stirred for the second time, and the working efficiency is greatly reduced. On the other hand, if the concrete is poured and vibrated and then a vehicle is used, if the concrete is not the concrete of the same manufacturer or the concrete is suddenly changed into raw materials, the water content of the concrete is easy to be different, the concrete is thinned or dried, the raw materials need to be adjusted immediately, and if the concrete cannot be remotely monitored or is dispatched, problems are easy to occur.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a concrete pouring process with high concrete quality, time saving and high working efficiency.

The technical scheme of the invention is as follows: a concrete pouring process comprises the following steps:

s1: placing the finished concrete in a pouring field, and remotely monitoring the pouring field;

s2: and a monitoring room is used for processing the whole vehicle material, and the slump of the concrete is adjusted by adding a water reducing agent.

And further, pouring the whole vehicle material into a pouring field, and pouring and vibrating the concrete, wherein the vibrating direction is opposite to the flowing direction of the concrete.

Further, after the first layer of concrete is poured, the water content of the concrete conveyed subsequently and the water content of the first layer of concrete are monitored remotely, and if the water content of the concrete is not consistent with the water content of the first layer of concrete, the concrete is blended through a water reducing agent.

Further, the difference of the water content of two adjacent layers of concrete is not more than 3% -10%.

Further, the concrete comprises aggregate, admixture and water, and the water reducing agent is used for blending the aggregate of the concrete.

Further, the aggregate includes pebbles, crushed stones and sand.

Further, the admixture comprises conch, fly ash and an expanding agent.

Furthermore, when concrete is poured and vibrated, the vibrating speed of inserting the concrete layer is higher than the vibrating speed of pulling out the concrete layer.

Further, the vibrated concrete is in an initial setting stage, and two ends of the concrete layer are vibrated for the second time.

The invention has the beneficial effects that: on one hand, the slump condition of the concrete can be accurately obtained through remote monitoring, timely adjustment is carried out, the concrete is effectively prevented from being segregated or layered, the water content of adjacent layers is kept the same or close to that of the adjacent layers, the working efficiency is greatly improved, and new concrete does not need to be re-prepared; on the other hand, a monitoring room makes a processing instruction on the whole vehicle material, and the slump of the concrete can be improved by taking a method of adding the water reducing agent for multiple times into consideration according to the retention time of the concrete, so that the concrete is prevented from being segregated and layered, and the composition is prevented from changing; moreover, free water and foaming of the vibrated concrete can be avoided.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

A concrete pouring process comprises the following steps:

s101: and placing the finished concrete in a pouring field, and remotely monitoring the pouring field.

Specifically, this embodiment has all set up the camera in every place of pouring, the pouring vibration condition of remote monitoring concrete. For example, each layer of a building is provided with a camera, a monitoring room is arranged on one side of the building, the condition of each layer of a pouring site is integrally observed through the monitoring room, namely, concrete cannot be immediately constructed after being placed in the pouring site, the stability of the concrete needs to be controlled, and the slump condition of the concrete is checked by combining with the appearance quality so as to avoid the problems that the concrete is unqualified or the water content between concrete layers is different.

S102: and a monitoring room is used for processing the whole vehicle material, and the slump of the concrete is adjusted by adding a water reducing agent.

Specifically, unified scheduling is carried out to each car through the control room, just can not appear the concrete raw materials not correspond or the water content is different and leads to producing the problem of segregation or layering between each layer of concrete of pouring. After the first layer of concrete is poured, the water content of the concrete conveyed subsequently and the water content of the first layer of concrete are monitored remotely, and if the water content of the concrete is not consistent with the water content of the first layer of concrete, the concrete is prepared through a water reducing agent. The concrete mainly comprises aggregate, admixture and water, the proportion of the admixture is generally standard, and the water reducer is mainly used for blending the aggregate to increase or reduce the water content, so that the water contents of two layers of concrete are the same or close to each other, and the difference of the water contents is not more than 3-10%, preferably 5%. In this embodiment, the aggregate includes pebbles, crushed stones, and sand. The admixture comprises conch, fly ash and expanding agent.

In this embodiment, adopt the vibrator to vibrate the concrete, and the direction of vibrating is opposite with concrete flow direction, can make the good concrete of vibrating no longer enter free water and bubble like this. When concrete is poured and vibrated, the vibrating speed of inserting the concrete layer is higher than the vibrating speed of pulling out the concrete layer, namely, the vibrating is carried out by adopting a fast inserting and slow pulling mode, and when the concrete is inserted fast, the uniformity of the concrete can be improved, and the vibrating working efficiency is improved; when the concrete is slowly pulled out, the phenomenon of layering or segregation of the concrete in the pulling-out process can be prevented. In the embodiment, slightly slushing and bleeding on the concrete pouring surface are taken as the effective vibration qualified marks, and the leakage vibration or the over vibration cannot occur.

In this embodiment, the concrete that vibrates is in the initial set stage to carry out the secondary vibration to the both ends of concrete layer, can improve the intensity of concrete like this, and maintain that the surface is pleasing to the eye.

In summary, on one hand, the slump condition of the concrete can be accurately obtained through remote monitoring, timely adjustment is carried out, the segregation or layering phenomenon of the concrete is effectively avoided, the water content of adjacent layers is kept the same or close to that of the adjacent layers, the working efficiency is greatly improved, and new concrete does not need to be re-prepared; on the other hand, a monitoring room makes a processing instruction on the whole vehicle material, and the slump of the concrete can be improved by taking a method of adding the water reducing agent for multiple times into consideration according to the retention time of the concrete, so that the concrete is prevented from being segregated and layered, and the composition is prevented from changing; moreover, free water and foaming of the vibrated concrete can be avoided.

Claims

1. The concrete pouring process is characterized by comprising the following steps:

2. The concrete placement process as claimed in claim 1, wherein a complete car of material is poured into the placement site and the concrete is subjected to placement vibration in a direction opposite to the direction of concrete flow.

3. A concrete casting process according to claim 1 or claim 2, wherein after a layer of concrete has been cast, the moisture content of the concrete subsequently delivered is monitored remotely from the first layer of concrete and if the moisture content does not correspond to the moisture content of the first layer of concrete, blending is carried out with a water reducing agent.

4. The concrete pouring process according to claim 3, wherein the difference between the water contents of two adjacent layers of concrete is not more than 3-10%.

5. The concrete placement process according to claim 3, wherein the concrete components include aggregate, admixture and water, and the water reducer is formulated to the aggregate of the concrete.

6. The concrete placement process according to claim 5, wherein the aggregate comprises pebbles, crushed stones and sand.

7. The concrete placement process of claim 5, wherein the admixture includes conches, fly ash and an expanding agent.

8. A concrete placement process according to claim 1 or 2, wherein the placement vibration is applied to the concrete at a rate greater for insertion into the concrete layer than for withdrawal from the concrete layer.

9. A concrete placement process according to claim 1 or 2, characterized in that the vibrated concrete is in an initial setting stage and that the concrete layer is vibrated secondarily at both ends.