{"id":41369,"date":"2020-03-13T08:00:03","date_gmt":"2020-03-12T23:00:03","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=41369"},"modified":"2026-05-17T06:48:00","modified_gmt":"2026-05-16T21:48:00","slug":"paglawak-dahil-sa-init-bakal-kongkreto-polietileno","status":"publish","type":"post","link":"https:\/\/norimen.net\/tl\/thermal-expansion-iron-concrete-polyethylene\/","title":{"rendered":"Isang talakayan tungkol sa mga koepisyent ng pagpapalawak dahil sa init ng bakal, kongkreto, at polietileno."},"content":{"rendered":"<p>Kamusta kayong lahat.<\/p>\n<p>Ito si Enta.<\/p>\n<p>Nagtataka ako kanina: may partikular na dahilan ba sa paggamit ng steel spacers (PC spacers)?<\/p>\n<p>Kaya naman inihanda ko ang mga materyales.<\/p>\n<p>Ang dahilan kung bakit ito gawa sa bakal.<\/p>\n<p>&nbsp;<\/p>\n<p>Dahil magkaiba ang mga koepisyent ng pagpapalawak dahil sa init, mas kaunti ang mga bitak.<\/p>\n<p>Isang talahanayan lang iyon na nagbubuod sa sinabi ko, pero tila lubos itong naintindihan ng konseho.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-41370 alignnone\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/4.jpg\" alt=\"Koeffisyent ng pagpapalawak\" width=\"440\" height=\"500\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/4.jpg 440w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/4-264x300.jpg 264w\" sizes=\"auto, (max-width: 440px) 100vw, 440px\" \/><\/p>\n<p>Kasama ko rin ang talahanayan na ito, pero malaki ang pinagkaiba ng bakal at polyethylene, hindi ba?<\/p>\n<p>Ito ang dahilan kung bakit nabubuo sa mga ibabaw ng mortero ang malalim at magaspang na mga bitak.<\/p>\n<p>&nbsp;<\/p>\n<p>Sa katunayan, baka akala mo imposibleng malampasan ng polyethylene ang mortero, pero may uri ng mortero na nalalampasan pa nga ng mga ugat ng puno.<\/p>\n<p>Walang paraan na malalampasan nito ang polyethylene, lol (lalo na dahil napakamanipis ng ipinamumulaklak na mortero).<\/p>\n<p>Sa huli, palagi naman itong naeeekspos sa init at lamig sa paglipas ng mga taon.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-39832 alignnone\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2019\/08\/PC-600x460.jpg\" alt=\"PC Spacer\" width=\"600\" height=\"460\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2019\/08\/PC.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2019\/08\/PC-300x230.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Kaya bakit ang bakal ang angkop? Ito ay dahil halos magkapareho ang koepisyente ng paglawak nito sa init sa koepisyente ng kongkreto.<\/p>\n<p>Kaya madaling makita kung bakit napakabagay ng Ras net.<\/p>\n<table style=\"width: 100%; border-style: solid; background-color: #52d4eb;\" width=\"100%\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"103\"><span style=\"font-size: 120%;\">Pangalan ng Produkto<\/span><\/td>\n<td style=\"text-align: center;\" width=\"71\"><span style=\"font-size: 120%;\">Yunit<\/span><\/td>\n<td style=\"text-align: center;\" width=\"107\"><span style=\"font-size: 120%;\">Lakas ng paghila<\/span><\/td>\n<td style=\"text-align: center;\" width=\"103\"><span style=\"font-size: 120%;\">Pangalan ng Produkto<\/span><\/td>\n<td style=\"text-align: center;\" width=\"71\"><span style=\"font-size: 120%;\">Yunit<\/span><\/td>\n<td style=\"text-align: center;\" width=\"93\"><span style=\"font-size: 120%;\">Koefisyente ng pagpapalawak dahil sa init<\/span><\/td>\n<td style=\"text-align: center;\" width=\"190\"><span style=\"font-size: 120%;\">Mga tala<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">polyethylene<\/td>\n<td style=\"text-align: center;\">kilogram-pwersa kada metro kuwadrado<\/td>\n<td style=\"text-align: center;\">0.42\u20131.61<\/td>\n<td style=\"text-align: center;\">polyethylene<\/td>\n<td style=\"text-align: center;\">\u00d710<sup>-6<\/sup>\/K<\/td>\n<td style=\"text-align: center;\"><span style=\"font-size: 120%;\"><strong><span style=\"color: #ff0000;\">180.0<\/span><\/strong><\/span><\/td>\n<td style=\"text-align: center;\">PE na may mataas na densidad<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\u9244<\/td>\n<td style=\"text-align: center;\">kilogram-pwersa kada metro kuwadrado<\/td>\n<td style=\"text-align: center;\">tatlumpu't lima\u2013limampu<\/td>\n<td style=\"text-align: center;\">\u9244<\/td>\n<td style=\"text-align: center;\">\u00d710<sup>-6<\/sup>\/K<\/td>\n<td style=\"text-align: center;\"><span style=\"font-size: 120%;\"><strong><span style=\"color: #0000ff;\">11.7<\/span><\/strong><\/span><\/td>\n<td style=\"text-align: center;\"><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">PC Spacer<\/td>\n<td style=\"text-align: center;\">kilogram-pwersa kada metro kuwadrado<\/td>\n<td style=\"text-align: center;\">284\u2013304<\/td>\n<td style=\"text-align: center;\">PC Spacer<\/td>\n<td style=\"text-align: center;\">\u00d710<sup>-6<\/sup>\/K<\/td>\n<td style=\"text-align: center;\"><span style=\"font-size: 120%;\"><strong><span style=\"color: #0000ff;\">11.7<\/span><\/strong><\/span><\/td>\n<td style=\"text-align: center;\">Para sa lakas ng paghila, sumangguni sa JIS G3522.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Kongkreto<\/td>\n<td style=\"text-align: center;\">kilogram-pwersa kada metro kuwadrado<\/td>\n<td style=\"text-align: center;\">Antas ng insidente: 1\/10<\/td>\n<td style=\"text-align: center;\">Kongkreto<\/td>\n<td style=\"text-align: center;\">\u00d710<sup>-6<\/sup>\/K<\/td>\n<td style=\"text-align: center;\"><span style=\"font-size: 120%;\"><strong><span style=\"color: #0000ff;\">11.7<\/span><\/strong><\/span><\/td>\n<td style=\"text-align: center;\">Ang koepisyente ng pagpapalawak nito ay halos kapareho ng sa bakal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ganito ang itsura nito sa anyong talahanayan.<\/p>\n<p>Kitang-kita mong lumalawak ang mga polyethylene spacer dahil sa init sa loob ng mortero.<\/p>\n<p>Isang kilalang katotohanan na mababa ang lakas ng paghila ng mortero.<\/p>\n<p>Ang bitak ay sanhi ng paglawak ng polyethylene spacer sa loob ng mortero at pagtulak dito mula sa loob, na nagiging sanhi upang ito'y magbukas nang may kalampag.<\/p>\n<p>Napakahirap makakita ng mga polyethylene spacer na ginagamit sa mga kritikal na estruktural na elemento tulad ng balangkas ng gusali.<\/p>\n<p>Lalo na sa mga lugar na madaling maapektuhan ng init.<\/p>\n<p>&nbsp;<\/p>\n<p>Nagiging malinaw ito kapag tiningnan mo ang mga numero.<\/p>\n<p>Gayunpaman, may isa pang dahilan kung bakit higit sa lahat ay ginagamit ko ang mga steel spacer.<\/p>\n<p><span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Kahit may natira pa sa site, mabebenta pa rin 'yan! lol<\/span><\/strong><\/span><\/p>\n<p>Narito na ito!<\/p>\n<p>Kahit pa madala mo pauwi ang anumang tira mula sa lugar, maaari mo itong ibenta sa isang tindahan ng scrap metal sa maliit na halaga. (Sa praktika, hahalo ito sa iba pang scrap metal.)<\/p>\n<p>Hindi nila kokolektahin ang plastik na basura maliban kung magbabayad ka.<\/p>\n<p>Malaking kaibahan iyan!<\/p>\n<p>Dinala ko pauwi ang tira mula sa lugar.<span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Mga bagay na maaaring ipagpalit sa pera<\/span><\/strong><\/span>At,<span style=\"font-size: 150%;\"><strong><span style=\"color: #0000ff;\">Mga bagay na hindi ganoon.<\/span><\/strong><\/span><\/p>\n<p>At saka, siyempre, nariyan ang isyu ng mga mikroplastik.<\/p>\n<p>&nbsp;<\/p>\n<p>Bagaman mahalaga ang kalidad ng pinagsabog na mortero sa dalisdis,<\/p>\n<p><span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Mahalaga rin ang gastos at ang kapaligiran!<\/span><\/strong><\/span><\/p>\n<p>Gusto kong siguraduhin na masusubaybayan ko kahit ang pinakamaliit na gastos!<\/p>\n<p>&nbsp;<\/p>\n<p>Magkita tayo mamaya.<\/p>\n<p>Ipo-post namin ang mga dokumento sa aming website upang mai-download ang mga ito.<\/p>\n<p><a href=\"https:\/\/norimen.net\/tl\/wordpress\/pc%e3%82%b9%e3%83%9a%e3%83%bc%e3%82%b5%e3%83%bc%e3%82%ab%e3%82%bf%e3%83%ad%e3%82%b0\/\" target=\"_blank\" rel=\"noopener\">I-download<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"h1HxRvBi7z\"><p><a href=\"https:\/\/norimen.net\/tl\/paglalaban-sa-panahon-ng-pe-paglaban-sa-uv\/\">Ang Pagtatagal sa Panahon ng Polyethylene at Carbon Black | Ang Katotohanan sa Likod ng 100-Taong Katatagan<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cAng Pagtatagal sa Panahon ng Polyethylene at Carbon Black | Ang Katotohanan sa Likod ng 100-Taong Katatagan\u201d \u2014 Kurso sa Pamamahala ng Daluranan ng Shin-Enta\" src=\"https:\/\/norimen.net\/pe-weatherability-uv-resistance\/embed\/#?secret=9uZNOT0dg8#?secret=h1HxRvBi7z\" data-secret=\"h1HxRvBi7z\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>","protected":false},"excerpt":{"rendered":"<p>Kamusta kayong lahat. Ako si Enta. Noong nakaraan, inihanda ko ang ilang materyal bilang tugon sa tanong: 'May partikular na dahilan ba sa paggamit ng steel spacers (PC spacers)?'\u2014partikular kung bakit gawa ang mga ito sa bakal. 'Dahil magkaiba ang koepisyente ng pagpapalawak dahil sa init, kaya mas mababa ang panganib ng pagbitak.' Well\u2026<\/p>","protected":false},"author":2,"featured_media":3955,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_total_topic_count_hidden":0,"_bbp_total_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[1],"tags":[121,394,3162,3260,3261],"class_list":["post-41369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-others","tag-121","tag-pc","tag-3162","tag-3260","tag-3261"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.5 (Yoast SEO v28.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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