{"id":1103,"date":"2026-04-03T03:57:39","date_gmt":"2026-04-03T03:57:39","guid":{"rendered":"https:\/\/www.geo-tester.com\/?post_type=standard&#038;p=1103"},"modified":"2026-04-08T06:00:31","modified_gmt":"2026-04-08T06:00:31","slug":"astm-d5994","status":"publish","type":"standard","link":"https:\/\/www.geo-tester.com\/lt\/standard\/astm-d5994\/","title":{"rendered":"ASTM D5994"},"content":{"rendered":"<p>Tekst\u016brin\u0117s geomembranos atlieka svarb\u0173 vaidmen\u012f s\u0105vartyn\u0173 \u012fd\u0117kluose, kasykl\u0173 apsaugos sistemose, tvenkiniuose, kanaluose, rezervuaruose ir aplinkos apsaugos projektuose. Kadangi \u0161iose med\u017eiagose da\u017enai b\u016bna i\u0161kilusi\u0173 i\u0161kilim\u0173, i\u0161siki\u0161im\u0173 ar pavir\u0161iaus \u012fdubim\u0173, matuojant stor\u012f \u012fprastiniu plok\u0161\u010diojo p\u0117dos storio metodu gali nepavykti gauti patikim\u0173 duomen\u0173. ASTM D5994 nustatytas specialus metodas tekst\u016bruot\u0173 geomembran\u0173 \u0161erdies storiui nustatyti.<\/p>\n\n\n\n<p>ASTM D5994 standarte daugiausia d\u0117mesio skiriama ma\u017eiausiam storiui \u201cnuo sl\u0117nio iki sl\u0117nio\u201d, o ne bendram tekst\u016bruoto pavir\u0161iaus auk\u0161\u010diui. \u0160i vert\u0117 padeda gamintojams, laboratorijoms ir kokyb\u0117s kontrol\u0117s darbuotojams \u012fvertinti gaminio nuoseklum\u0105 ir numatyti geomembran\u0173 eksploatacines savybes sud\u0117tingose lauko s\u0105lygose.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D5994 ir tekst\u016bruot\u0173 geomembran\u0173 \u0161erdies storio bandymas<\/h2>\n\n\n\n<p>ASTM D5994 taikomas tekst\u016brini\u0173 geomembran\u0173 \u0161erdies storio nustatymui naudojant savojo svorio storio matuokl\u012f su specialiai suprojektuotais matavimo ta\u0161kais. Taikant \u0161\u012f metod\u0105 naudojama 0,56 \u00b1 0,05 N j\u0117ga, u\u017etikrinanti nuoseklius ir pakartojamus rezultatus.<\/p>\n\n\n\n<p>Kitaip nei taikant plok\u0161\u010dios geomembranos storio nustatymo metodus, pagal ASTM D5994 standart\u0105 reikia, kad matuoklio antgaliai atsidurt\u0173 \u012fdubimuose tarp pavir\u0161iaus i\u0161siki\u0161im\u0173. Taikant \u0161\u012f metod\u0105 matuojamas tikrasis geomembranos lak\u0161to pagrindo storis, o ne tekst\u016bros auk\u0161tis.<\/p>\n\n\n\n<p>Standartas taikomas vienpus\u0117ms ir dvipus\u0117ms tekst\u016bruotoms geomembranoms, paprastai naudojamoms:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u0105vartyn\u0173 \u012fd\u0117kl\u0173 sistemos<\/li>\n\n\n\n<li>\u0160laitinio i\u0161plovimo kasybos aik\u0161tel\u0117s<\/li>\n\n\n\n<li>Nuotek\u0173 lag\u016bnos<\/li>\n\n\n\n<li>Rezervuaro \u012fd\u0117klai<\/li>\n\n\n\n<li>Antrinio izoliavimo sistemos<\/li>\n\n\n\n<li>Aplinkos barjer\u0173 taikymas<\/li>\n<\/ul>\n\n\n\n<p><strong>\u0160erdies storis yra viena i\u0161 svarbiausi\u0173 tekst\u016brini\u0173 geomembran\u0173 rodiklini\u0173 savybi\u0173, nes nuo jo tiesiogiai priklauso tempimo stipris, atsparumas prad\u016brimui, difuzin\u0117 elgsena ir ilgalaikis patvarumas.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Geomembran\u0173 storio matavimo proced\u016bra<\/h2>\n\n\n\n<p>ASTM D5994 apibr\u0117\u017eia i\u0161sami\u0105 geomembran\u0173 storio matavimo proced\u016br\u0105, kad b\u016bt\u0173 suma\u017einti laboratorij\u0173 skirtumai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bandini\u0173 paruo\u0161imas<\/h3>\n\n\n\n<p>Atliekant bandym\u0105 reikia paimti reprezentatyvius bandinius per vis\u0105 geomembranos ritinio plot\u012f. M\u0117giniai tur\u0117t\u0173 b\u016bti imami i\u0161 viet\u0173, esan\u010di\u0173 netoli abiej\u0173 ritinio kra\u0161t\u0173, nes storis visame lak\u0161te gali skirtis.<\/p>\n\n\n\n<p>Daugumoje laboratorij\u0173 naudojami apval\u016bs ma\u017edaug 75 mm skersmens bandiniai. Bandinys turi b\u016bti bent 10 mm platesnis u\u017e matuoklio ta\u0161kus visomis kryptimis.<\/p>\n\n\n\n<p>Prie\u0161 bandym\u0105 bandiniai turi b\u016bti laikomi kontroliuojamoje atmosferoje, kurioje yra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>21 \u00b1 2 \u00b0C<\/li>\n\n\n\n<li>60 \u00b1 10 % santykin\u0117 dr\u0117gm\u0117<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Matavimo procesas<\/h3>\n\n\n\n<p>Pirmiausia operatorius nulioja geomembran\u0173 storio matuokl\u012f, kai n\u0117ra bandinio.<\/p>\n\n\n\n<p>Tada bandinys dedamas tarp prie\u0161ing\u0173 matuokli\u0173 ta\u0161k\u0173. Vir\u0161utinis matavimo ta\u0161kas turi liesti tekst\u016bruoto pavir\u0161iaus \u017eemas vietas arba sl\u0117nius, o ne i\u0161siki\u0161im\u0173 vir\u0161\u016bnes.<\/p>\n\n\n\n<p>Kiekvienam m\u0117giniui reikia atlikti tris rodmenis. Pagal ASTM D5994 standart\u0105 operatorius turi \u012fra\u0161yti ma\u017eiausi\u0105 vert\u0119 kaip bandinio stor\u012f.<\/p>\n\n\n\n<p>5 sekundes veikdamas visa savojo svorio apkrova, operatorius fiksuoja galutin\u0119 storio vert\u0119 0,025 mm arba 0,001 col. tikslumu.<\/p>\n\n\n\n<p><strong>\u0160is metodas suma\u017eina rizik\u0105 pervertinti stor\u012f d\u0117l i\u0161kilusio tekst\u016bros profilio.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Geomembran\u0173 storio matuoklio reikalavimai<\/h2>\n\n\n\n<p>Tinkamas geomembran\u0173 storio matuoklis yra labai svarbus, kad b\u016bt\u0173 laikomasi ASTM D5994 standarto reikalavim\u0173.<\/p>\n\n\n\n<p>Standarte nurodyta, kad priemon\u0117 turi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Naudokite apkrovos mechanizm\u0105 su sav\u0105ja mase<\/li>\n\n\n\n<li>Matuokite stor\u012f ne ma\u017eesniu kaip \u00b10,01 mm tikslumu<\/li>\n\n\n\n<li>Veikiama 0,56 \u00b1 0,05 N j\u0117ga<\/li>\n\n\n\n<li>\u012etraukti suderintus vir\u0161utinius ir apatinius matuoklio ta\u0161kus<\/li>\n\n\n\n<li>I\u0161laikyti skland\u0173 vertikal\u0173 jud\u0117jim\u0105 matavimo metu<\/li>\n<\/ul>\n\n\n\n<p>Patys matuokliai tur\u0117t\u0173 b\u016bti su funkcijomis:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gr\u016bdinto plieno konstrukcija<\/li>\n\n\n\n<li>60 \u00b1 2\u00b0 k\u016bgin\u0117 geometrija<\/li>\n\n\n\n<li>Suapvalinto galiuko spindulys 0,8 \u00b1 0,1 mm<\/li>\n<\/ul>\n\n\n\n<p>Kadangi pakartotinai naudojant gali nutrup\u0117ti antgaliai arba atsirasti nesuderinamumas, b\u016btina reguliariai kalibruoti naudojant sertifikuotus storio blokus.<\/p>\n\n\n\n<p><strong>D\u0117l neteisingos matuoklio ta\u0161ko geometrijos gali b\u016bti gaunami netiksl\u016bs rezultatai ir prastas pakartojamumas.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rekomenduojama ASTM D5994 bandymo \u012franga<\/h2>\n\n\n\n<p>\"Cell Instruments\" gali pateikti pritaikytas geomembran\u0173 storio matavimo sistemas, skirtas ASTM D5994 bandymams atlikti. Specialus negyvojo svorio storio testeris su tiksliais matavimo ta\u0161kais padeda laboratorijoms atlikti stabilius ir pakartojamus matavimus.<\/p>\n\n\n\n<p>FTT-01 turi kelet\u0105 privalum\u0173 matuojant geomembran\u0173 stor\u012f:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PLC + HMI jutiklinis ekranas intuityviam valdymui<\/li>\n\n\n\n<li>Programuojamos bandym\u0173 parinktys lanks\u010dioms kokyb\u0117s kontrol\u0117s proced\u016broms<\/li>\n\n\n\n<li>Automatinis prispaud\u0117jo kojel\u0117s pak\u0117limas, kad suma\u017e\u0117t\u0173 bandini\u0173 pa\u017eeidim\u0173 ir pager\u0117t\u0173 pakartojamumas<\/li>\n\n\n\n<li>Realaus laiko statistikos rodymas, \u012fskaitant did\u017eiausi\u0105, ma\u017eiausi\u0105, vidutin\u0119 ir standartinio nuokrypio vertes<\/li>\n\n\n\n<li>Pasirenkamas mikroprinteris ir RS-232 ry\u0161ys atsekamiems duomenims i\u0161vesti<\/li>\n\n\n\n<li>Pasirenkamos rankinio arba automatinio padavimo sistemos didel\u0117s apimties bandymams<\/li>\n\n\n\n<li>Didel\u0117 0,1 \u03bcm skiriamoji geba, leid\u017eianti aptikti ne\u017eymius storio poky\u010dius<\/li>\n\n\n\n<li>Pritaikomas bandymo diapazonas, vir\u0161ijantis standartin\u0119 0-2 mm konfig\u016bracij\u0105<\/li>\n<\/ul>\n\n\n\n<p><strong>Norint gauti tikslius ASTM D5994 standarto rezultatus, labai svarbu tur\u0117ti didel\u0117s skiriamosios gebos storio tester\u012f, kuris pasi\u017eymi stabilia \u012fkrova ir pakartojamu pad\u0117ties nustatymu.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DUK<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-1&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-1-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-1\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">K\u0105 matuoja ASTM D5994?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-1\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-1-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Pagal ASTM D5994 nustatomas tekst\u016bruot\u0173 geomembran\u0173 \u0161erdies storis, nustatant ma\u017eiausi\u0105 stor\u012f tarp tekst\u016bruoto pavir\u0161iaus sl\u0117ni\u0173.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kod\u0117l ASTM D5994 skiriasi nuo standartini\u0173 storio metod\u0173?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Standartiniais plok\u0161\u010diosios p\u0117dos storio metodais galima i\u0161matuoti pavir\u0161iaus asperacij\u0173 auk\u0161t\u012f. Pagal ASTM D5994 specialiai matuojamas \u0161erdies storis \u017eemiau tekst\u016bros profilio.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kod\u0117l pagal ASTM D5994 standart\u0105 reikalaujama atlikti tris matavimus vienam bandiniui?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Pavyzd\u017eio pavir\u0161iaus tekst\u016bra gali skirtis. Atlikus tris matavimus pager\u0117ja pakartojamumas ir lengviau nustatyti tikr\u0105j\u012f ma\u017eiausi\u0105 stor\u012f.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kokios j\u0117gos reikia ASTM D5994 bandymams atlikti?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>ASTM D5994 standarte nurodyta, kad 0,56 \u00b1 0,05 N j\u0117ga, veikianti per savojo svorio storio matuokl\u012f, turi b\u016bti 0,56 \u00b1 0,05 N.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-5&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-5-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-5\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kod\u0117l fiksuojamas ma\u017eiausias rodmuo?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-5\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-5-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Ma\u017eiausias rodmuo atspindi ma\u017eiausi\u0105 vietin\u012f stor\u012f tekst\u016briniuose sl\u0117niuose, kuris yra tikrasis geomembranos \u0161erdies storis.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-6&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-6-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-6\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Kokiose pramon\u0117s \u0161akose da\u017eniausiai naudojamas ASTM D5994 standartas?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-6\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-6-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p>Tokiose pramon\u0117s \u0161akose kaip aplinkos in\u017einerija, s\u0105vartyn\u0173 statyba, kalnakasyba, vandentvarka ir geosintetini\u0173 med\u017eiag\u0173 gamyba da\u017enai naudojamos <a href=\"https:\/\/store.astm.org\/d5994_d5994m-10r21.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D5994<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D5994 standarte pateikiamas standartizuotas tekst\u016bruot\u0173 geomembran\u0173 \u0161erdies storio matavimo metodas, taikant savojo svorio storio matuokl\u012f su apibr\u0117\u017eta antgalio geometrija ir apkrovos j\u0117ga. \u0160iuo metodu daugiausia d\u0117mesio skiriama storiui nuo sl\u0117nio iki sl\u0117nio, o ne pavir\u0161iaus tekst\u016bros auk\u0161\u010diui.<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":true},"standard-category":[56],"class_list":["post-1103","standard","type-standard","status-publish","hentry","standard-category-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.geo-tester.com\/lt\/wp-json\/wp\/v2\/standard\/1103","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.geo-tester.com\/lt\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.geo-tester.com\/lt\/wp-json\/wp\/v2\/types\/standard"}],"wp:attachment":[{"href":"https:\/\/www.geo-tester.com\/lt\/wp-json\/wp\/v2\/media?parent=1103"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.geo-tester.com\/lt\/wp-json\/wp\/v2\/standard-category?post=1103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}