Laserfiche WebLink
11/15/99 MON 10:24 FAX 9055700305 A-C-M <br />~-~~ry - Lazar <br />-~. <br />~ <br />~ <br />Fi~. 3- C7rQVity feed uppliattce <br />Fnr mecliccro sized areas <br />Conclusio~~s and recommendations. <br />Fig. 4- Can, fined spray equipment <br />Far large arerrs <br />Three cypes of seater are genera{ly av2'slable for use with btoek paving, i.e. water based, <br />so(vefit !~ased acryiic and moisture cure ureihane. Experience fias shown thaE the uretha~~e <br />seaier is u`~e most effzctive in reducing absorption of pavers and stabilising jointing sand. <br />6 <br />This cype of sealer, which has a long term pcoven record on grojects varying froni dontestic <br />drives to heavy industrial pavements~ wilt: <br />~ Rerluce surface porosity therehy resisting penetration ~f stains and assist <br />subseyuettt clearting. <br />• Screngchea and maintain performanee Qf pavemenu by enabling pavers co <br />transmit si~ear sttess tc~ neighbouring units by maintaining sand in joints. <br />• Inhibit ingress of water and pollutants through joints, ~ <br />• Ini~it~it weed growth betwe~n joints. <br />• S4ibit~se jvinting sand and prevent erosion of jointing sand from: <br />Jet engine blast on aircraft pavements. <br />Use of vacuum sweepers and high pressure jec cleaning equipir~ent <br />'1"ucbulent water flow. <br />Degradativn and liquefaction of taying course sand clue ta ingces; of <br />water. <br />~j oos <br />Most sealers concain same hazardaus ingredients and it is essentia! they are applie~ scriccly <br />in accordance wich manufacturers' in.SiruCtlons, with sgecia~ attentiort given to he~ith and <br />safery needs. <br />, . ; ~ <br />