{"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":"perluasan-termal-besi-beton-polietilen","status":"publish","type":"post","link":"https:\/\/norimen.net\/id\/thermal-expansion-iron-concrete-polyethylene\/","title":{"rendered":"Mengenai koefisien muai panas besi, beton, dan polietilen"},"content":{"rendered":"<p>Halo semuanya.<\/p>\n<p>Ini Enta.<\/p>\n<p>Dulu, apakah ada alasan tertentu mengapa menggunakan spacer berbahan besi (PC spacer)?<\/p>\n<p>Karena itu, saya membuat dokumen tersebut.<\/p>\n<p>Alasan mengapa terbuat dari besi.<\/p>\n<p>&nbsp;<\/p>\n<p>\u201cKarena koefisien muai panasnya berbeda, retakan yang muncul jadi lebih sedikit.\u201d<\/p>\n<p>Sebenarnya saya hanya membuat tabel dari hal itu, tapi pihak instansi tampaknya memahaminya dengan baik.<\/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=\"Tingkat ekspansi\" 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>Saya juga menyertakan tabel ini, tapi perbedaannya antara besi dan polietilen cukup besar, bukan?<\/p>\n<p>Inilah alasan mengapa permukaan mortar retak-retak parah.<\/p>\n<p>&nbsp;<\/p>\n<p>Memang, Anda mungkin berpikir bahwa mortar tidak mungkin kalah dari polietilen, tetapi mortar ini bahkan bisa dikalahkan oleh akar pohon.<\/p>\n<p>Tidak mungkin bisa mengalahkan polietilen, lho (terutama karena mortar semprot itu tipis)<\/p>\n<p>Ya, karena seiring berjalannya waktu, benda itu terus-menerus terpapar panas dan dingin.<\/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=\"Spacer PC\" 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>Lalu, mengapa besi tidak menjadi masalah? Hal ini karena koefisien muai panasnya hampir sama dengan beton.<\/p>\n<p>Jadi, saya benar-benar mengerti bahwa jaring Las juga sangat cocok.<\/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%;\">Nama Produk<\/span><\/td>\n<td style=\"text-align: center;\" width=\"71\"><span style=\"font-size: 120%;\">satuan<\/span><\/td>\n<td style=\"text-align: center;\" width=\"107\"><span style=\"font-size: 120%;\">Kekuatan tarik<\/span><\/td>\n<td style=\"text-align: center;\" width=\"103\"><span style=\"font-size: 120%;\">Nama Produk<\/span><\/td>\n<td style=\"text-align: center;\" width=\"71\"><span style=\"font-size: 120%;\">satuan<\/span><\/td>\n<td style=\"text-align: center;\" width=\"93\"><span style=\"font-size: 120%;\">Koefisien muai panas<\/span><\/td>\n<td style=\"text-align: center;\" width=\"190\"><span style=\"font-size: 120%;\">Catatan<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">polietilen<\/td>\n<td style=\"text-align: center;\">kgf\u30fbmm\u00b2<\/td>\n<td style=\"text-align: center;\">0,42\u20131,61<\/td>\n<td style=\"text-align: center;\">polietilen<\/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 kepadatan tinggi<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">\u9244<\/td>\n<td style=\"text-align: center;\">kgf\u30fbmm\u00b2<\/td>\n<td style=\"text-align: center;\">35\u201350<\/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;\">Spacer PC<\/td>\n<td style=\"text-align: center;\">kgf\u30fbmm\u00b2<\/td>\n<td style=\"text-align: center;\">284\u2013304<\/td>\n<td style=\"text-align: center;\">Spacer PC<\/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;\">Kekuatan tarik, lihat JIS G3522<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\">Beton<\/td>\n<td style=\"text-align: center;\">kgf\u30fbmm\u00b2<\/td>\n<td style=\"text-align: center;\">Intensitas kejadian 1\/10<\/td>\n<td style=\"text-align: center;\">Beton<\/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;\">Tingkat ekspansinya hampir sama dengan besi<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Jika dibuat dalam bentuk tabel, tampilannya seperti ini.<\/p>\n<p>Terlihat jelas bahwa spacer polietilen mengalami pemuaian termal di dalam mortar.<\/p>\n<p>Sudah menjadi rahasia umum bahwa mortar memiliki kekuatan tarik yang rendah.<\/p>\n<p>Retakan terjadi karena spacer berbahan polietilen yang mengembang di dalam mortar akan terdorong dari dalam, sehingga dengan mudah pecah secara tiba-tiba.<\/p>\n<p>Hampir tidak ada bagian pada struktur penting seperti rangka bangunan yang menggunakan spacer berbahan polietilen.<\/p>\n<p>Terutama di tempat-tempat yang rentan terhadap pengaruh panas.<\/p>\n<p>&nbsp;<\/p>\n<p>Hal ini terlihat jelas jika dilihat dari segi angka.<\/p>\n<p>Meski begitu, sebenarnya ada alasan lain mengapa saya paling sering menggunakan spacer baja.<\/p>\n<p><span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Bahkan jika ada sisa di lokasi, tetap laku! w<\/span><\/strong><\/span><\/p>\n<p>Ini dia!<\/p>\n<p>Meskipun barang-barang sisa di lokasi proyek dibawa pulang, jika dibawa ke toko besi, barang-barang tersebut masih bisa dijual dengan harga yang sangat kecil. (Sebenarnya, barang-barang tersebut akan digabungkan dengan sampah besi lainnya.)<\/p>\n<p>Sampah plastik tidak akan diambil kecuali kita membayar.<\/p>\n<p>Perbedaannya sangat besar!<\/p>\n<p>Sisa di lokasi kerja, dibawa pulang<span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Hal-hal yang bisa ditukar dengan uang<\/span><\/strong><\/span>dan,<span style=\"font-size: 150%;\"><strong><span style=\"color: #0000ff;\">Hal yang tidak demikian.<\/span><\/strong><\/span><\/p>\n<p>Selain itu, belakangan ini juga muncul masalah mikroplastik.<\/p>\n<p>&nbsp;<\/p>\n<p>Kualitas penyemprotan mortar pada lereng memang penting, tetapi,<\/p>\n<p><span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">Biaya dan lingkungan juga penting!<\/span><\/strong><\/span><\/p>\n<p>Saya ingin memanfaatkan setiap penghematan sekecil apa pun!<\/p>\n<p>&nbsp;<\/p>\n<p>Sampai jumpa lagi.<\/p>\n<p>Dokumen tersebut akan kami unggah di situs web perusahaan kami agar dapat diunduh.<\/p>\n<p><a href=\"https:\/\/norimen.net\/id\/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\">Unduh<\/a><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"h1HxRvBi7z\"><p><a href=\"https:\/\/norimen.net\/id\/ketahanan-terhadap-cuaca-dan-ketahanan-terhadap-sinar-uv\/\">Ketahanan Polietilen terhadap Cuaca dan Karbon Hitam | Kebenaran di Balik Daya Tahan 100 Tahun<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cKetahanan Polietilen terhadap Cuaca dan Karbon Hitam | Kebenaran di Balik Daya Tahan 100 Tahun\u201d \u2014 Sekolah Pengelolaan Lereng Shin-Ent\" 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>Halo semuanya. Ini Enta. Beberapa waktu lalu, saya membuat sebuah dokumen untuk menjawab pertanyaan, \u201cApakah ada alasan tertentu mengapa kita menggunakan spacer berbahan besi (PC spacer)?\u201d Yaitu, alasan mengapa harus berbahan besi.   \u201cKarena koefisien muai panasnya berbeda, jadi risiko retak lebih kecil,\u201d kata\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_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 v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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