New con­crete form­ing and screed­ing sys­tem

DEMM Engineering & Manufacturing - - PRODUCT WATCH - www.demm.co.nz/reader- en­quiry #160903

The Beast is an in­no­va­tive screed­ing and form­ing sys­tem for con­crete slabs on grade and el­e­vated slabs.

The unique patented sys­tem solves a prob­lem and serves two pur­poses, says Lance Canute, prod­uct devel­op­ment man­ager of CANZAC.

The first is a fixed el­e­va­tion point-to­point screed­ing sys­tem elim­i­nat­ing the need to recheck lev­els, which is needed when us­ing free-screed­ing meth­ods cur­rently used in the con­crete in­dus­try. This means de­sign­ers, en­gi­neers, ar­chi­tects, con­trac­tors and oc­cu­piers can ex­pect im­proved fin­ish floor lev­el­ness (FF and FL num­bers).

Se­condly The Beast is an edge­form­ing sys­tem es­pe­cially ben­e­fi­cial for slab on grade ap­pli­ca­tions. Th­ese use the Beast Foot with steel nail stakes fixed to the form­work with du­plex nails or du­plex screws in a ver­ti­cal po­si­tion, and the other steel nail stake to the sec­ond Beast Foot on a 45° an­gle for the form brac­ing. This elim­i­nates form de­flec­tion from the lat­eral pres­sure of the con­crete.

Ac­cord­ing to Canute the Beast is a real game changer be­cause the com­pany has been look­ing for a sys­tem like this for years that would en­able con­trac­tors to set form work with­out hav­ing to punc­ture vapour bar­ri­ers or DPC or DPM. Punch­ing the vapour bar­rier or any pen­e­tra­tion through the vapour bar­rier is con­cern­ing for the de­signer, Canute says, be­cause the sub­se­quent mois­ture can mi­grate through the con­crete slab and can lead to fail­ure of floor cov­er­ings.

“De­sign­ers must be very aware of this li­a­bil­ity, es­pe­cially nowa­days as most ad­he­sives are water-based and don’t need a lot of mois­ture mi­grat­ing through the con­crete slab to cause de­lam­i­na­tion of floor cov­er­ings or even worse, water vapour, con­tam­i­nants and soil gases en­ter­ing the build­ing en­ve­lope, lead­ing to mois­ture get­ting into wall fram­ing and lin­ings which cre­ate a very un­healthy en­vi­ron­ment for the oc­cu­piers of the build­ing.”

Canute also says the en­gi­neer­ing be­hind the Beast screed­ing and form­ing sys­tem is very in­no­va­tive, very smart and cost ef­fec­tive. It is made from three com­po­nents de­rived from 100 per­cent vir­gin polypropy­lene. The Beast foot with the en­gi­neered peel and stick ad­he­sive that is ad­hered to the vapour bar­rier, is the only ex­pend­able part.

The Beast post – a round threaded pro­file with slab el­e­va­tion mark­ings that fits into the Beast foot – can be cut down to suit slab thick­ness from 100mm to 300mm, can be re­moved and is re­us­able.

The ad­justable cap that screws into the Beast post has 50mm of ad­justa­bil­ity and coloured yel­low with an­ten­nas so is eas­ily seen at the fin­ish floor level (FFL). Both the ad­justable cap and the post can be re­moved from The Beast foot at the same time and reused.

The Beast will save time in all screed­ing and form­ing op­er­a­tions be­cause there is no need to drive pegs or nail stakes to brace form­work or box­ing, with the added value of a vapour bar­rier safe ap­pli­ca­tion that will mit­i­gate li­a­bil­ity for de­sign­ers and con­trac­tors, ad­vises Canute.

Ap­pli­ca­tions where the Beast could be used in­clude in­dus­trial, com­mer­cial, retail, slabs on grade, el­e­vated decks and mul­ti­story build­ings, reser­voirs, waste­water treat­ment plants, bridge decks, tun­nels, shotcrete ap­pli­ca­tions, and any­where where screed­ing or con­crete needs to be within el­e­va­tion tol­er­ances, or con­crete cover to re­in­forc­ing steel is crit­i­cal, Canute says, which is prob­a­bly with­out doubt all the time.

The Beast sys­tem won the “Most In­no­va­tive Prod­uct” at the World of Con­crete 2016 in Las Ve­gas.

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