Surplus water from the concrete is removed immediately after placing and vibration reducing the watercement ratio to an optimum level.
Vacuum dewatered flooring is code.
This type of floor is suitable for high abrasion and heavy traffic movement seminar 2017 18 4 6.
The magnitude of applied vacuum is usually about 0 08 mpa and the water content is reduced by upto 20 25.
A flooring work for civil structure that is both time efficient and medium to high workability process to create a facility that is safe healthy and comfortable concrete flooring to be done by used of vacuum dewatering concrete flooring vdf technology.
This standard which was first published in 1963 is now being revised taking into account the experience gained in the.
Theory and practice 14 4 vacuum.
Benefits of vacuum dewatered.
The sequence of operation shall be placing of concrete vibration vacuum treatment and floating and the operation shall follow immediately behind each other.
E 2013 vacuum dewatered flooring in durable construction international journal of civil engineering research vol.
Laying guide rails to every 4 meters using ms channels or as required in straight lines along the line dori taking.
The vacuum dewatered vd flooring method is a system for laying high quality concrete floors with superior cost effectiveness.
Vacuum dewatered flooring vdf vacuumdewateredflooring civilengineering.
Vdf flooring specifications or flooring specifications or vdf flooring methodology or vdf flooring procedure or vacuum dewatered flooring technical specification or vacuum dewatered flooring procedure tying line dori threads as per the slope requirements br bull.
The vacuum dewatering process consists of leveling compacting and vacuum dewatering the concrete flooring by using vibrating screed vacuum pumps suction mats filter pads accessories etc.
In this technique the excess water after placement and compaction of concrete is sucked out with the help of vacuum pumps.
This code provides necessary guidance in the selection of materials and laying and finishing of cement concrete flooring for obtaining satisfactory performance.
This technique is effectively used in industrial floors parking lots and deck slabs of bridges etc.