Wednesday, July 30, 2014

JP336L Retrofit Waterstop System — Installed in Concrete Joint Designs Where Space is Limited

Earth Shield JP336L Retrofit System — JP336L is designed primarily for non-moving construction joints, although it can handle limited joint movement due to the mechanical properties of the parent material. A primary advantage of JP336L is that the fastening leg on the waterstop can be field-trimmed to 1-1/2” — the size of the stainless steel batten bar. Therefore, JP336L takes up very little room within a joint making it perfect for retrofitting thin slabs or containment curbs.

JP336L Retrofit Waterstop
One (1) 10 lft length of “L” Shaped TPV Waterstop
One (1) 10 lft length of 3/16” x 1-1/2” Stainless Steel Batten Bar
Twenty (20) Stainless Steel Anchor Bolts (size: 2-1/4” x ¼”)

Friday, June 13, 2014

Saturday, April 19, 2014

Labyrinth Waterstop

Labyrinth waterstops are double-headed nailed to the formwork; therefore, obviating the need to split the formwork to accommodate one half of the waterstop. Because of their keyway-like shape and multitudinous miniature ribs they do an adequate albeit not stellar job of preventing the passage of water through non-moving construction joints.

Because of their non-symmetrical geometry they are very limited in regards to changes of directions.

Monday, November 04, 2013

The Little Book of Waterstop, as Featured in Concrete International

We're pleased to be featured in the November 2013 issue of Concrete International — the official magazine of the American Concrete Institute.

Our waterstop reference manual, The Little Book of Waterstop, is featured on page 61 and the brief review is appreciated. However, the review incorrectly lists this blog as the download site for the free iPad book, when in fact the correct download location is here

Tuesday, September 10, 2013

Base Seal Waterstop Installation

Base seal type waterstops are renowned for their ease of installation, as the below installation guide illustrates. From initial placement to final pour, installation involves only four easy steps. Please contact our Technical Sales Department if we can be of any assistance for your waterstop installation needs.

Sunday, June 02, 2013

Concrete Joints Defined

Contraction Joints - Used to divide large pours of concrete into smaller structural units, contraction joints create a man-made plane of weakness to regulate and control (another name for a contraction joint is a control joint) the location of a crack formed by moisture loss of concrete. Without this formed contraction joint, the concrete would freely crack in unexpected and unattractive locations.

Construction Joints - an interruption of the concrete pour 30 minutes or greater creates a construction joint.

Expansion Joints - Designed to negate the compressive forces from abutting concrete structures that may occur as a result of expansion, loads, or differential movement from settlement. Expansion joints require an actual gap between the concrete pours, which is frequently filled with a compressible joint filler material such as foam, rubber, cork, or cane fiber board.

Saturday, March 23, 2013

We're Moving

Beginning April 1st, 2013 we will be in our brand new corporate headquarters and manufacturing facility in Murrieta, CA. Our new address is as follows:

J P Specialties, Inc.
25811 Jefferson Avenue
Murrieta, CA 92562
Ph: 951-763-7077
Fax: 951-763-7074

We look forward to serving our customers from our new facility. This is an exciting time for us, and we are grateful for all the business that has fueled this growth and change.