{"id":1879291,"date":"2026-04-12T12:13:47","date_gmt":"2026-04-12T09:13:47","guid":{"rendered":"https:\/\/analyse.optim.biz\/?p=1879291"},"modified":"2026-04-12T12:13:47","modified_gmt":"2026-04-12T09:13:47","slug":"beton-dintr-o-combinatie-neobisnuita-experimentul-care-ar-putea-schimba-radical-constructiile","status":"publish","type":"post","link":"https:\/\/analyse.optim.biz\/?p=1879291","title":{"rendered":"Beton dintr-o combina\u021bie neobi\u0219nuit\u0103. Experimentul care ar putea schimba radical construc\u021biile"},"content":{"rendered":"<p>[analyse_image type=&#8221;featured&#8221; src=&#8221;https:\/\/cdn.adh.reperio.news\/image-9\/950cd9ae-0bc7-4cdc-916c-a02be663a4f5\/index.jpeg?p=f%3Djpeg%26w%3D1200%26h%3D630%26r%3Dcover&#8221;]<\/p>\n<article class=\"svelte-t0js42\">\n<nav>\n<ul class=\"breadcrump svelte-xauq0s\">\n<li class=\"svelte-xauq0s\"><a href=\"\/\" title=\"Adev\u0103rul\" class=\"svelte-xauq0s\">Home<\/a><\/li>\n<li class=\"svelte-xauq0s\"><a href=\"\/stil-de-viata\" class=\"svelte-xauq0s\">Stil de via\u021b\u0103<\/a><\/li>\n<li class=\"svelte-xauq0s\"><a href=\"\/stil-de-viata\/stiinta\" class=\"svelte-xauq0s\">\u0218tiin\u021b\u0103<\/a><\/li>\n<li class=\"svelte-xauq0s\"><a href=\"https:\/\/adevarul.ro\/stil-de-viata\/stiinta\/beton-dintr-o-combinatie-neobisnuita-experimentul-2522219.html\" class=\"svelte-xauq0s\">Beton dintr-o combina\u021bie neobi\u0219nuit\u0103. Experimentul care ar putea schimba radical construc\u021biile<\/a><\/li>\n<\/ul>\n<\/nav>\n<p><main class=\"svelte-t0js42\"><\/p>\n<p>Cercet\u0103tori din<br \/>\nJaponia \u0219i Norvegia au dezvoltat un material experimental care ar putea schimba<br \/>\nmodul \u00een care este produs betonul, folosind pentru prima dat\u0103 nisip de de\u0219ert<br \/>\n\u00een combina\u021bie cu lian\u021bi de origine vegetal\u0103.<\/p>\n<div class=\"container-image  svelte-jd4qiv\"><source type=\"image\/webp\" srcset=\"https:\/\/cdn.adh.reperio.news\/image-9\/950cd9ae-0bc7-4cdc-916c-a02be663a4f5\/index.jpeg?p=a%3D1%26co%3D1.05%26w%3D1400%26h%3D750%26r%3Dcontain%26f%3Dwebp 1400w\" media=\"(min-width: 1400px)\" \/><\/p>\n<div class=\"caption\">Nisipul din de\u015fert ar putea fi folosit \u00eentr-un nou material de construc\u0163ii. FOTO: arhiv\u0103<\/div>\n<\/div>\n<p>Cercet\u0103tori de la<br \/>\nUniversitatea Norvegian\u0103 de \u0218tiin\u021b\u0103 \u0219i Tehnologie (NTNU) \u0219i Universitatea din<br \/>\nTokyo au reu\u0219it s\u0103 dezvolte un material de construc\u021bie experimental care<br \/>\npermite utilizarea nisipului de de\u0219ert \u00een compozi\u021bia betonului, o premier\u0103 \u00een<br \/>\ndomeniu. <\/p>\n<p>Proiectul propune o<br \/>\nabordare complet diferit\u0103 fa\u021b\u0103 de betonul conven\u021bional, bazat pe ciment, prin<br \/>\n\u00eenlocuirea par\u021bial\u0103 a acestuia cu lian\u021bi de origine vegetal\u0103 \u0219i particule<br \/>\nnaturale.<\/p>\n<p>Noul material,<br \/>\ndenumit \u201ebeton din nisip botanic\u201d, este realizat prin combinarea nisipului fin<br \/>\nde de\u0219ert cu aditivi vegetali \u0219i pulbere de lemn, procesul fiind finalizat \u00een<br \/>\ncondi\u0163ii de c\u0103ldur\u0103 \u0219i presiune controlat\u0103. Rezultatul este un compus dens,<br \/>\nob\u021binut f\u0103r\u0103 utilizarea metodelor clasice care implic\u0103 cantit\u0103\u021bi mari de ciment,<br \/>\nnoteaz\u0103 <a href=\"https:\/\/interestingengineering.com\/innovation\/desert-sand-concrete-ntu-tokyo?utm_source=facebook,linkedin,twitter&amp;utm_medium=social\" target=\"_blank\" rel=\"nofollow\">interestingengineering<\/a>.<\/p>\n<h2>Nisipul din de\u015fert,<br \/>\nprea fin pentru construc\u0163ii<\/h2>\n<p>Contextul \u00een care<br \/>\napare aceast\u0103 cercetare este unul dominat de paradoxuri ecologice. <a href=\"https:\/\/adevarul.ro\/stil-de-viata\/magazin\/secretul-rezistentei-constructiilor-antice-ale-2233279.html\" target=\"_blank\">Betonul<br \/>\n<\/a>este, dup\u0103 ap\u0103, cel mai utilizat material din lume, cu o produc\u021bie anual\u0103 de<br \/>\npeste patru miliarde de tone de ciment. \u00cen acela\u0219i timp, acest proces s\u0103u de<br \/>\nproducere este responsabil pentru aproximativ 8% din emisiile globale de dioxid<br \/>\nde carbon, ceea ce transform\u0103 industria construc\u021biilor \u00eentr-unul dintre marii<br \/>\ncontribuitori la poluarea global\u0103.<\/p>\n<p>Pe de alt\u0103 parte,<br \/>\nsectorul construc\u021biilor depinde masiv de nisipul extras din r\u00e2uri, cariere \u0219i<br \/>\nchiar din mediul marin, resurse aflate sub o presiune tot mai mare din cauza<br \/>\nexploat\u0103rii intense \u0219i a impactului asupra ecosistemelor. Asta \u00een timp ce<br \/>\nde\u0219erturile ofer\u0103 cantit\u0103\u021bi uria\u0219e de nisip, care a fost, \u00eens\u0103, considerat mult<br \/>\ntimp inutilizabil \u00een construc\u021bii, din cauza structurii sale prea fine \u0219i a<br \/>\ngranula\u021biei netede.<\/p>\n<p>Aceast\u0103<br \/>\ncaracteristic\u0103 \u00eel face incompatibil cu betonul tradi\u021bional, \u00een care particulele<br \/>\ntrebuie s\u0103 se lege eficient pentru a forma structuri rezistente. \u00cen lipsa<br \/>\nacestei propriet\u0103\u021bi, nisipul de de\u0219ert nu a putut fi folosit la scar\u0103 larg\u0103,<br \/>\nfor\u021b\u00e2nd industria s\u0103 continue exploatarea altor surse naturale, cu efecte<br \/>\nprecum eroziunea \u0219i degradarea habitatelor.<\/p>\n<p>Echipa de cercetare<br \/>\na analizat dac\u0103 acest material aparent inutil poate fi transformat \u00eentr-o<br \/>\nresurs\u0103 func\u021bional\u0103 printr-o<a href=\"https:\/\/adevarul.ro\/stiri-externe\/in-lume\/inginerii-britanici-au-descoperit-o-metoda-mai-2363292.html\" target=\"_blank\"> metod\u0103 alternativ\u0103<\/a> de produc\u021bie, care nu depinde<br \/>\nde cimentul clasic ca liant principal. <\/p>\n<p>Rezultatele<br \/>\nob\u021binute \u00een laborator au ar\u0103tat c\u0103 nisipul de de\u0219ert poate c\u0103p\u0103ta propriet\u0103\u021bi<br \/>\nstructurale utile atunci c\u00e2nd este combinat cu materiale organice \u0219i procesat<br \/>\n\u00een condi\u021bii atent controlate.<\/p>\n<h2>Cum a fost ob\u021binut<br \/>\nmaterialul<\/h2>\n<p><i>\u201eDe mul\u021bi ani se discut\u0103 dac\u0103 nisipul de de\u0219ert poate fi<br \/>\nfolosit \u00een beton. Problema este c\u0103 este at\u00e2t de fin \u00eenc\u00e2t nu func\u021bioneaz\u0103 bine<br \/>\nca element de leg\u0103tur\u0103 \u00een material. Cu alte cuvinte, betonul rezultat nu ar<br \/>\navea rezisten\u021ba necesar\u0103 pentru construc\u021bii\u201d,<\/i> a explicat Ren Wei, cercet\u0103tor postdoctoral la NTNU.<\/p>\n<p>Pentru a dep\u0103\u0219i<br \/>\naceast\u0103 limitare, cercet\u0103torii au combinat nisipul de de\u0219ert cu aditivi<br \/>\nvegetali \u0219i pulbere de lemn, aplic\u00e2nd simultan presiune \u0219i temperatur\u0103<br \/>\nridicat\u0103. Prin ajustarea atent\u0103 a parametrilor de produc\u021bie &#8211; inclusiv<br \/>\ntemperatura, presiunea, propor\u021biile de amestec \u0219i durata procesului &#8211; a fost<br \/>\nob\u021binut un material compact, cu structur\u0103 stabil\u0103, f\u0103r\u0103 utilizarea intensiv\u0103 a<br \/>\ncimentului.<\/p>\n<p>Toate testele au<br \/>\nfost realizate \u00een mediu de laborator, la Universitatea din Tokyo. <\/p>\n<p>Cercet\u0103torii au<br \/>\ncomparat nisipul de de\u0219ert cu alte tipuri de agregate fine \u0219i au analizat modul<br \/>\n\u00een care diferi\u021bi factori influen\u021beaz\u0103 rezisten\u021ba \u0219i densitatea materialului<br \/>\nfinal.<\/p>\n<p><i>\u201eAm analizat influen\u021ba mai multor variabile asupra<br \/>\nrezisten\u021bei \u0219i densit\u0103\u021bii materialului, inclusiv temperatura, raportul de<br \/>\namestec, presiunea, timpul de presare \u0219i tipurile de nisip utilizate\u201d,<\/i> a precizat Ren Wei.<\/p>\n<h2>Poten\u021bial ecologic,<br \/>\ndar rezisten\u0163\u0103 sc\u0103zut\u0103<\/h2>\n<p>Rezultatele arat\u0103<br \/>\nc\u0103 materialul ob\u021binut este suficient de rezistent pentru utiliz\u0103ri<br \/>\nne-structurale, precum pavele sau alei pietonale. Totu\u0219i, cercet\u0103torii atrag<br \/>\naten\u021bia c\u0103 \u201ebetonul din nisip botanic\u201d nu este \u00eenc\u0103 preg\u0103tit pentru construc\u021bii<br \/>\nde mari dimensiuni sau pentru condi\u021bii climatice dure.<\/p>\n<p>Sunt necesare<br \/>\nstudii suplimentare pentru a evalua comportamentul s\u0103u pe termen lung, inclusiv<br \/>\nrezisten\u021ba la temperaturi sc\u0103zute \u0219i la expunere \u00eendelungat\u0103 \u00een mediul<br \/>\nexterior.<\/p>\n<p>O alt\u0103 concluzie<br \/>\nimportant\u0103 a cercet\u0103torilor este c\u0103 nisipul de de\u0219ert ar trebui utilizat local,<br \/>\npentru a reduce impactul de mediu generat de transportul materialelor grele pe<br \/>\ndistan\u021be mari.<\/p>\n<p>Dac\u0103 va fi<br \/>\nperfec\u021bionat, acest tip de material ar putea reduce presiunea asupra<br \/>\nexploat\u0103rii nisipului din r\u00e2uri \u0219i cariere, diminu\u00e2nd degradarea mediului \u0219i<br \/>\noferind \u00een acela\u0219i timp o utilizare practic\u0103 unei resurse abundente din<br \/>\nregiunile aride ale lumii.<\/p>\n<p><\/main><\/p>\n<footer class=\"svelte-t0js42\">\n<div class=\"related-wrap related-footer svelte-1t8qpgs\"><span class=\"related-label svelte-1t8qpgs\">Cite\u0219te \u0219i<\/span><a class=\"related svelte-1t8qpgs\" data-gtrack='{\"event\":\"utm_click\",\"data\":{\"event_category\":\"article_related\"}}' href=\"https:\/\/adevarul.ro\/stiri-locale\/turnu-severin\/ce-proprietati-avea-cimentul-folosit-de-romani-1636138.html\" title=\"Alt articol de interes pentru tine\"><img decoding=\"async\" class=\"thumb svelte-1t8qpgs\" src=\"https:\/\/cdn.adh.reperio.news\/image-f\/f74b7374-254f-40f9-8924-a52438103c9a\/index.jpeg\" alt loading=\"lazy\" width=\"80\" height=\"54\"><span class=\"title svelte-1t8qpgs\">Ce propriet\u0103\u0163i avea cimentul folosit de romani pentru construc\u0163ia Podului lui Traian de la Drobeta &#8211; explica\u0163ia speciali\u015ftilor<\/span><\/a><a class=\"related svelte-1t8qpgs\" data-gtrack='{\"event\":\"utm_click\",\"data\":{\"event_category\":\"article_related\"}}' href=\"https:\/\/adevarul.ro\/stil-de-viata\/stiinta\/secretele-uimitoare-ale-betonului-roman-de-acum-2396475.html\" title=\"Alt articol de interes pentru tine\"><img decoding=\"async\" class=\"thumb svelte-1t8qpgs\" src=\"https:\/\/cdn.adh.reperio.news\/image-a\/a16a8584-1987-4b2f-822d-a552e42a1a31\/index.jpeg\" alt loading=\"lazy\" width=\"80\" height=\"54\"><span class=\"title svelte-1t8qpgs\">Secretele uimitoare ale betonului roman de acum 2.000 de ani. Descoperirile din Pompei \u00eentrec tehnologia modern\u0103<\/span><\/a><a class=\"related svelte-1t8qpgs\" data-gtrack='{\"event\":\"utm_click\",\"data\":{\"event_category\":\"article_related\"}}' href=\"https:\/\/adevarul.ro\/economie\/tot-mai-multi-romani-isi-construiesc-case-in-regie-2468816.html\" title=\"Alt articol de interes pentru tine\"><img decoding=\"async\" class=\"thumb svelte-1t8qpgs\" src=\"https:\/\/cdn.adh.reperio.news\/image-1\/1d7d9484-f687-45cd-9276-9b4412f133fe\/index.jpeg\" alt loading=\"lazy\" width=\"80\" height=\"54\"><span class=\"title svelte-1t8qpgs\">Tot mai mul\u021bi rom\u00e2ni \u00ee\u0219i construiesc case \u00een regie proprie. \u201eCostul de recomandare scumpe\u0219te construc\u021bia\u201d   <\/span><\/a><\/div>\n<div class=\"meta svelte-t0js42\">\n<div class=\"authors svelte-t0js42\"><a href=\"\/author\/2048\" rel=\"author\" class=\"svelte-t0js42\">Florentina Grigore<\/a><\/div>\n<div class=\"tags svelte-12okeyl\"><span class=\"tags-label metaFont svelte-12okeyl\">Cite\u0219te mai multe despre<\/span><\/p>\n<div class=\"tags-list svelte-12okeyl\"><a href=\"\/tag\/constructii\" title=\"Ultimele \u0219tiri despre constructii\" class=\"tag-pill svelte-12okeyl\">constructii<\/a><a href=\"\/tag\/beton\" title=\"Ultimele \u0219tiri despre beton\" class=\"tag-pill svelte-12okeyl\">beton<\/a><a href=\"\/tag\/ciment\" title=\"Ultimele \u0219tiri despre ciment\" class=\"tag-pill svelte-12okeyl\">ciment<\/a><\/div>\n<\/div>\n<\/div>\n<p><a class=\"moreFromCategory svelte-t0js42\" href=\"\/stil-de-viata\/stiinta\" title=\"\u0218tiin\u021b\u0103\">Mai multe din <strong class=\"svelte-t0js42\">\u0218tiin\u021b\u0103<\/strong> \u203a<\/a><\/footer>\n<\/article>\n<p>[analyse_source url=&#8221;https:\/\/adevarul.ro\/stil-de-viata\/stiinta\/beton-dintr-o-combinatie-neobisnuita-experimentul-2522219.html&#8221;]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[analyse_image type=&#8221;featured&#8221; src=&#8221;https:\/\/cdn.adh.reperio.news\/image-9\/950cd9ae-0bc7-4cdc-916c-a02be663a4f5\/index.jpeg?p=f%3Djpeg%26w%3D1200%26h%3D630%26r%3Dcover&#8221;] Home Stil de via\u021b\u0103 \u0218tiin\u021b\u0103 Beton dintr-o combina\u021bie neobi\u0219nuit\u0103. Experimentul care ar putea schimba radical construc\u021biile Cercet\u0103tori din Japonia \u0219i Norvegia au dezvoltat un material experimental care ar putea schimba modul \u00een care este produs betonul, folosind pentru prima dat\u0103 nisip de de\u0219ert \u00een combina\u021bie cu lian\u021bi de origine vegetal\u0103. Nisipul din [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[19,226],"class_list":["post-1879291","post","type-post","status-publish","format-standard","hentry","category-romania","tag-adevarul","tag-crawlmanager"],"_links":{"self":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1879291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1879291"}],"version-history":[{"count":0,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=\/wp\/v2\/posts\/1879291\/revisions"}],"wp:attachment":[{"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1879291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1879291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/analyse.optim.biz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1879291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}