7/23/2019 Brochure PermeaTORR V13

1/2

Measures theAir-Permeability of the

Cover Concreteafter Swiss Standard SIA 262/1-E

Why measure the Air-Permeability of the Cover Concrete?

As the defence barrier against penetration of aggressive species (CO2, C-

, SO!2-

, etc"#, the per$eabiit% of thecover concrete has a decisive i$pact on the d&rabiit% of concrete str&ct&res"

Concrete co$position, t%pe of for$wor', concrete processing and c&ring are the $ain factors inf&encing the&ait% of the cover concrete) hence the need to $eas&re it on the finished str&ct&re" Swiss Standard SIA262*2++ .Concrete Constr&ction states* .0he i$per$eabiit% of the cover concrete sha be chec'ed b%$eans of per$eabiit% tests (e"g" air per$eabiit% $eas&re$ents# on the str&ct&re or on core sa$pes ta'enfro$ the str&ct&re"

0he PermeaTORR0is an instr&$ent designed precise% to serve that p&rpose* i"e" to $eas&re the per$eabiit%to air of the cover concrete on site, in a fast, repeatabe, reiabe and non-destr&ctive $anner" 0he res&ts of theSwiss Standard $ethod correate we with other d&rabiit% reated tests, s&ch as Choride enetration (AS0C12+2#, Capiar% S&ction (AS0 C1343#, 5ater enetration &nder ress&re (E 127+-4#, Carbonation,

er$eabiit% to O2(8ie$-Ce$b&rea, etc"0he $ethod is aso appicabe to other poro&s $aterias s&ch as roc', stone, ca% prod&cts, cera$ics, etc"

How is the Air-Permeability kT measured?

A vac&&$ is created inside the 2-cha$ber vac&&$ ce, which is seaedonto the concrete s&rface b% $eans of a pair of concentric soft rings,creating two separate cha$bers"

5hen the vac&&$ reaches + $bar, Eectro-9ave 2 is cosedand the pne&$atic s%ste$ of the inner, $eas&re$ent cha$ber(green in the diagra$# is isoated fro$ the p&$p"

0he air, present in the pores of the concrete beneath, fowsthro&gh the cover concrete into the inner cha$ber, raising itspress&re i"

0he rate of increase of press&re i is direct% in'ed to the

coefficient of air-per$eabiit% of the cover concrete"A press&re reg&ator $aintains the press&re of the e:terna cha$ber per$anent% baanced with that of theinner cha$ber (e;i#" 0h&s, a controed &nidirectiona fow into the inner cha$ber is ens&red and thecoefficient of per$eabiit% to air '0 ($

7/23/2019 Brochure PermeaTORR V13

2/2

PermeaTORR Background

0he PermeaTORR is a new-generation version of the we-proved .0orrent test $ethod that has beens&ccessf&% appied wordwide for $ore than 13 %ears" iestones*

Invention of the $ethod b% =r" 8" 0orrent in Swit>erand (1771#

Intensive research and ?aborator% and Site appications grantedb% the Swiss @edera =epart$ent of 0ransportation (1772-2++6#

=eveop$ent and a&nching of a co$$ercia instr&$ent, the.0orrent er$eabiit% 0ester, b% roce S"A" (177#

Inc&ded as a Swiss Standard ethod (.Air-per$eabiit% onStr&ct&res# in SIA 262/1* .Concrete Constr&ction Co$pe$entar% Specifications (2++#

0op perfor$er, 8I?E 8eco$$endation 0C 147-EC, .on-destr&ctive eva&ation of the concrete cover (2++3#

=eveop$ent and a&nching of a new-generation instr&$ent, the.Permea-TORR, b% aterias Advanced Services ?td" (2++4#

What is new with the PermeaTORR?

1" It is faster) the new software version aows to co$pete a test

within 2 to 6 $in&tes instead of 12 $in&tes2" Caibration and test f&% a&to$ated, i"e" once the .Start 'e%

has been activated, the operator can perfor$ other tas's &ntiPermeaTORRbeeps that the operation has been co$peted

" It is co$pact and ight (fits in a carr%ing case weighing 7 'g#

!" 0he operation and different f&nctionaities are activated via ato&ch-screen co$p&ter that aso dispa%s the res&ts

3" 0he ot (e"g" .co&$n C22-B1, 5 side# and the $eas&re$entpoint (e"g" .2"32 $ fro$ foot, 1++ $$ fro$ eft edge# can bedescribed

6" 0he instr&$ent $eas&res the press&re of both cha$bers, sothat the reiabe operation of the s%ste$ (e;i# can awa%s be$onitored" 0he te$perat&re is aso $eas&red

B" E:tended range of $eas&re$ent to inc&de &tra highper$eabe $aterias (6#, s&ch as certain roc's and ca%ties

4" =&st fiters ocated inside both cha$bers of the vac&&$ ce

7" ress&re growth rate can be dispa%ed graphica% (Di - t#,aowing a prei$inar% g&ess of the '0 va&e

1+" =ata of &p to 1+++ $eas&re$ents can be stored in the $e$or%and downoaded to a C

11"

Statistica eva&ation of data (og-$ean and standard deviation#12" Advanced feat&res provide f& contro of the test (e"g" testingabove vapo&r press&re# and the cac&ation of '0 &nder speciaconditions (e"g" thin ee$ents#

1" 0he software can be &pdated to i$prove operation andacco$$odate f&t&re re&ests of o&r c&sto$ers

What else is re.uired?

A $edi&$-s$a si>ed vac&&$ p&$p and eectric power (11+-2!+ 9#) see s&itabe $odes in o&r webpage"

0he PermeaTORR$eas&res the coefficient of air-per$eabiit% '0 &nder the e:isting $oist&re conditions" Asthe $oist&re content of the cover concrete $ight affect '0, it is advisabe to assess the $oist&re content on sitefoowing the instr&$ents and reco$$endations indicated in o&r web-page"

MMaatteerriiaallssAAddvvaanncceedd//eerrvviicceess//00((00++00, F&enos Aires, Argentina,G3!71134372B6 / G!1B7BB!+6+1

www0m-a-s0com0ar e-ai* info1m-a-s0com0ar

Prototy)e testin effect of23emdrain4 formwork liner on air-

)ermeability "55!#

Permeability Classes based on kT

6ltra Hih7 "88P9'

:ery Hih"8 ; "88P9

+ow808" ; 80"P9!

:ery +ow 808"P9"

PermeabilitykT"8-"' m@#

Class

6ltra Hih7 "88P9'

:ery Hih"8 ; "88P9

+ow808" ; 80"P9!

:ery +ow 808"P9"

PermeabilitykT"8-"' m@#

Class

Classes P9" - P9= are e.uivalent to A/TM C"!8!