{"id":54058,"date":"2026-09-13T18:26:39","date_gmt":"2026-09-13T18:26:39","guid":{"rendered":"https:\/\/cp.snarskis.lt\/index.php\/2026\/09\/13\/betonas-is-zmoniu-nuoteku-mokslininkai-atskleide-kiek-priedo-pakanka-geresniam-tvirtumui\/"},"modified":"2026-09-13T18:26:39","modified_gmt":"2026-09-13T18:26:39","slug":"betonas-is-zmoniu-nuoteku-mokslininkai-atskleide-kiek-priedo-pakanka-geresniam-tvirtumui","status":"publish","type":"post","link":"https:\/\/cp.snarskis.lt\/index.php\/2026\/09\/13\/betonas-is-zmoniu-nuoteku-mokslininkai-atskleide-kiek-priedo-pakanka-geresniam-tvirtumui\/","title":{"rendered":"Betonas i\u0161 \u017emoni\u0173 nuotek\u0173? Mokslininkai atskleid\u0117, kiek priedo pakanka geresniam tvirtumui"},"content":{"rendered":"<p>Indijoje Manipal University Jaipur tyr\u0117j\u0173 komanda, vadovaujama in\u017einieriaus Raghuvesho Tivariego, pasi\u016bl\u0117 netik\u0117t\u0105 b\u016bd\u0105 suma\u017einti cemento kiek\u012f betone: dal\u012f jo pakeisti priedu i\u0161 nuotek\u0173 dumblo. \u017daliava buvo paimta i\u0161 nuotek\u0173 valyklos Warangale ir apdorota taip, kad virst\u0173 anglingu, por\u0117tu produktu.<\/p>\n<p>Dumblas buvo kaitinamas ribojant deguonies patekim\u0105, taikant piroliz\u0119, ma\u017edaug 350\u2013450 laipsni\u0173 Celsijaus temperat\u016broje. Po tokio apdorojimo gautas biokuras, vadinamas bianglimi, buvo sumaltas ir i\u0161sijotas, kad tikt\u0173 \u012fmai\u0161yti \u012f cemento pagrindo mi\u0161in\u012f.<\/p>\n<p>Mokslininkai i\u0161band\u0117 tris sud\u0117tis, kuriose bianglimi pakeista 5 proc., 10 proc. ir 15 proc. cemento. Matavimai parod\u0117, kad jau 5 proc. priedas gali duoti ap\u010diuopiamos naudos, o 91 dienos brandos laikotarpiu vidutinis gniu\u017edymo stipris padid\u0117jo apie 20 proc., lenkimo stipris \u2013 apie 36 proc.<\/p>\n<p>Dar geresnis rezultatas pasiektas su 10 proc. bianglies: po 91 dienos gniu\u017edymo stiprio prieaugis siek\u0117 apie 21 proc., o lenkimo \u2013 iki 42 proc. Ta\u010diau didinant kiek\u012f iki 15 proc. prad\u0117jo ry\u0161k\u0117ti neigiami po\u017eymiai: daugiau por\u0173, mikro\u012ftr\u016bkim\u0173 ir silpniau susiri\u0161usi\u0173 zon\u0173, kurios ilgainiui gali ma\u017einti ilgaam\u017ei\u0161kum\u0105.<\/p>\n<p>Tyr\u0117jai ai\u0161kina, kad bianglies mikrostrukt\u016bra veikia kaip vandens kaupiklis: smulkios poros sulaiko dr\u0117gm\u0119 ir j\u0105 palaipsniui atiduoda kiet\u0117jimo metu. D\u0117l to cementin\u0117s reakcijos gali vykti tolygiau, o smulkios dalel\u0117s papildomai u\u017epildo tu\u0161tumas, ma\u017eina poringum\u0105 ir vandens \u012fgeriamum\u0105.<\/p>\n<p>Tokie eksperimentai atitinka platesn\u0119 krypt\u012f statyb\u0173 sektoriuje: ie\u0161koma ma\u017eesnio anglies p\u0117dsako ri\u0161ikli\u0173 ir b\u016bd\u0173 ma\u017einti tradicinio klinkerio dal\u012f, nes cementas yra vienas did\u017eiausi\u0173 pramonini\u0173 emisij\u0173 \u0161altini\u0173. Nuotek\u0173 dumblo panaudojimas taip pat siejasi su \u017eiedine ekonomika, kai atliekos paver\u010diamos \u017ealiavomis.<\/p>\n<p>Vis d\u0117lto iki praktinio naudojimo infrastrukt\u016broje dar reikia papildom\u0173 bandym\u0173. Mokslininkai pabr\u0117\u017eia b\u016btinyb\u0119 \u012fvertinti atsparum\u0105 \u0161al\u010diui, auk\u0161tai temperat\u016brai, druskingai aplinkai, taip pat ilgalaik\u012f patvarum\u0105 ir tai, ar potencialiai pavojingi sunkieji metalai i\u0161 nuotek\u0173 dumblo lieka patikimai \u201eu\u017erakinti\u201c betono strukt\u016broje.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Indijos mokslininkai dal\u012f cemento pakeit\u0117 i\u0161 nuotek\u0173 dumblo pagaminta bianglimi: 5\u201310 proc. priedas pagerino betono stipr\u012f, bet 15 proc. jau kenk\u0117.<\/p>\n","protected":false},"author":0,"featured_media":54059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[7],"tags":[32017,11732,19069,41741,40747,17083,6410],"miestas":[],"class_list":["post-54058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologijos","tag-betonas","tag-bianglis","tag-cementas","tag-manipal-university-jaipur","tag-nuoteku-dumblas","tag-pirolize","tag-ziedine-ekonomika"],"acf":[],"_links":{"self":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/54058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/comments?post=54058"}],"version-history":[{"count":0,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/54058\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media\/54059"}],"wp:attachment":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media?parent=54058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/categories?post=54058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/tags?post=54058"},{"taxonomy":"miestas","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/miestas?post=54058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}