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<br />11/15/99 MON 10:26 FAX 9055700305 <br />A-C-M <br />of ~r:ttrr sourcrs. 'Iliis qurstion oF foant rollrr. as xhu~vn in Fi~~~rc 3. ; <br />lucl accutttulati»g i~encatli block 'Chcmatc~i;~is~+~c~r(cedintothcjoints ~ <br />pa~~emcncs has prcviuusly been <br />in.•estigared by a ~~v~nber of so as co pcuc~racc che joiucing sxnd: ~ <br /> <br />or~nizarions usin~ the explosimerer =~o surplus marerial is lefr un the ~ <br /> <br />to give an indication oEc6e leve[ oF <br />surface. th~ m:tterial was originally ~nrbnn h <br />~' Hr.~ ~l.~ale(J r~ Ph.U. ii~ Ciril <br /> <br />po~rntially cxplosivc vapour undcr <br />~ormulated ~o pre~•ent jointing sand F_rrgincr,~ing fi-oru tl.~c Uitir,rrrirN o <br />,F <br /> <br />blocksandat~dertrau~i~ionalc~ncrete loss caused 6~ec blasc from a;rcrafr <br />Y• NOtrirrq~b.rmmz<lisa~irvfr;turatl~/LIC <br /> <br />surtaces. The findings indicaced dtae <br />taking off from aircraft parements King~tnn. Hespec•ializeri~rt/~tareaaf <br />/~igf~ro~s atrd t~~~rtpoi•tatimi Rnd, fo,- <br />irt areas adjace::t co rlie most surFacedwi~h bIo[Ispaving. Other rhelrutthr~eyean,G~rb~enro~d~,«;,.g <br />Erequendy uscd pumps, at! rypes oF bcnefirs dcmonsrra[ed by rhe re,cn~z/i inro rhr f,ue uf ijrterlacking <br />pavemenc are potenrially hazardous, material havc iiee~~: cunrneie Glo.k p~L~~nh~ in CnRatLt, <br />buttha~rheriskwasnohigherunder • its abiliq~ co prevenc sand loss fleirnli~e~ludprof~trinnR~~ugintrri~t <br />btocks thaa undcr conventiana! cause~ hy ~acuum nveepina; Unrario and ~Ito e U.k; t~iartn~cl <br />pavemen~s. • i~ abiliry eo p,-o~ide a pcaeceeivr ~»S~~IPeI: ' <br /> <br />Joinc Seaiing eoatin ~p clte blocks, mikin <br />g g I°~"~L""'~', ~ U.K. dinnerede~tgi~trer, <br /> <br />A liquid pre-polyn~er. "ACM <br />subsequenc cleaning easier, and is~arttr~atdircctoriaithACMProjert <br />Marr2g~,,,r,rt Lrd <br />ir~ the U <br />K He <br />Pavsed,' has bccn devetoped wich ~ t~ ~~~y ~CduCes [Iu permtabiliry . <br />. <br />~,on~~,rd tl~e rrse of concrete 6lock <br />rhe specific aim af scabilizing rhe af ~he joincingsand, chus avoiding pr~iing orr ~i~rlds in 1981 and /~~ri <br />joincing sand in hlack paving. ~hc problems assoeisctd wirh, hed ext~urrt•e expcrrenr~ rn rhv <br />Pavseel is usrd directly from the ingress ofwaccrznd fuels inro rhe canrtrr~ction of coucrere blork <br />tontainer aad is applied evenly co d~e underlyi~g sand and pavemcn~ P~i`~~'~e1~ts rrrpporting tr~ffic a»d <br />pavecnen[ by Inng-lia»dlcd brush or i structura induttrinllonding. <br />Haunching and hedding , ~ <br /> =dge Resuaint ~ <br /> . <br />Jc~incin~ Sand <br /> <br /> <br />. ~,~ <br />,. ~,~ ~ ~ ,,:,, , ,, . ~..; <br />, .. , ,,- , <br />~ ~ . j <br />' ~. ~i~,,~ i„ , ,~. . r,~,i i, ,; <br />Pavers <br />~ <br /> <br />., . <br />. ~ ~ ~~~ r.. ~!. . i i - ,I. i <br />" ~ .~i : ~~ ..i~~:.,~. ~ .. ~ ...~ . <br />,.• r. .!,., . , ;~ ,. ..; Sub-base ~ <br />. <br /> ~ +~~,~~u ~:~i.~'.i~:,„ ,, ' <br />IJ <br />~ <br />, , , , . . ~ <br />~ . . <br />;:.`,~:,~.,\ti,,~`,,~,\.~; ..•. . ,,~ .\..•.. ~~ ,. . ,. \: ~ .. , .. <br />~ `'` ; .; .Ga~ipT~rtp, Y.ay~~ <br />.` .:~~.; s <br />(on ~veeli.sliibgtadrs)' <br />.~. . <br />.•• ,~ .. . <br /> ,, <br />Subgrade <br />~~: - <br />~gure 1- T~ypicat concrete btock pavement cross --section <br />PETROLEUM MARKETER Jaceuary/February 1993 ~ <br />21 <br />f~1.j O11 <br />