Contraction joint installer for concrete slabs

(10) US 2014/0205378 Al

(43) Jul. 24, 2014

(71) Harvey Hilbert Haynes, Oakland, CA (US)

(22) Jan. 17, 2014

(57) An apparatus and method to install contraction joints in concrete slabs. The method uses a device, which inserts a strip of plastic or paper tape into freshly laced concrete, as the device is driven across a concrete slab. The tape is folded immediately prior to being inserted into freshly placed concrete, and functions to weaken the slab at the contraction joint location for the purpose of causing a crack to form in the slab. Plastic tape can be used, which functions as a moisture vapor...

Related articles:

Issue 11/2014 Diephaus

Concrete slabs with the look of marble

Diephaus had presented the coated slab “Patio” already a year ago. The Patio is made entirely of concrete, can be easily and quickly laid in crushed stone, is dirt resistant and requires little...

more
Issue 07/2019

Construction method comprising the production of at least one slab ...

(10) WO 2019/086791 Al (22) 26.10.2018 (43) 09.05.2019 (57) The present invention relates to a construction method, comprising the production of at least one slab (1) according to the following steps:...

more
Issue 01/2017

Compliant trim for concrete slabs

(10) US 2016/0319536 Al (22) 10.04.2016 (43) 03.11.2016 (57) A compliant trim for use between concrete slabs is disclosed, intended to seal the joints and provide a decorative cover over the forms....

more
Issue 02/2013 Precast floor slabs with an in-situ concrete toping

Verification of the lap joint detailing

Two-way precast floor slabs require an overlapping joint of the load carrying reinforcement in both directions. As the overlapping reinforcement lies within the in-situ concrete, special detailing of...

more
Issue 09/2010 Something Small from Something 

RPL Slab Saw with Chamfer Grinding and Chamfer Blasting Function

New is that the smaller product retains the properties of the basic slab, i.e. both sawing and chamfering of the sawed side as well as additional blasting of the sawed side, providing and ensuring in...

more