concrete poker vibrator is a construction tool used on concrete pouring sites. a variety of manufacturers build these machines and an assortment of attachments designed for multiple applications. a vibrator on formwork is removed. while not necessary for small jobs, this tool is essential on large load bearing projects. in all cases, a concrete vibrator that can reach the bottom of the pouring forms should be used, ensuring even treatment of the entire concrete pour. attachments are selected on the basis of the depth of the pour and the type of concrete being used. a concrete vibrator uses an off-centered weight, which is spun as much as 10,000 times a minute, causing large air pockets in the concrete to disperse as the concrete is shaken. especially in pours of low slump concrete, which uses minimal water,