|
<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 />
|