{"id":50997,"date":"2024-03-23T08:00:25","date_gmt":"2024-03-22T23:00:25","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=50997"},"modified":"2026-06-09T23:24:03","modified_gmt":"2026-06-09T14:24:03","slug":"semen-susu-1230-kg","status":"publish","type":"post","link":"https:\/\/norimen.net\/id\/cement-milk-1230kg\/","title":{"rendered":"Apa sih yang dimaksud dengan 1.230 kg semen cair itu!?"},"content":{"rendered":"<p>Halo semuanya.<\/p>\n<p>Ini Enta.<\/p>\n<h2>Apa Itu Formulasi Campuran Semen-Air? | Rasio W\/C 50% Merupakan Standar dalam Pekerjaan Peninggian Lereng<\/h2>\n<p>Sebenarnya, apa itu semen susu?<strong>Bahan injeksi berbentuk pasta yang terbuat dari campuran bubuk semen dan air<\/strong>Artinya, dalam pekerjaan penahan lereng, seperti pekerjaan jangkar tanah, baut batu, dan pemasangan tulangan baja, bahan ini disuntikkan ke dalam lubang yang telah dibor untuk menancapkan badan jangkar atau tulangan baja ke dalam tanah.<\/p>\n<p>Inti dari formulasi ini adalah<strong>Rasio W\/C (rasio air-semen)<\/strong>. Hal ini dinyatakan dengan rumus \u201cmassa air \u00f7 massa semen\u201d.<\/p>\n<ul>\n<li>Rasio W\/C<strong>Kecil<\/strong>Airnya relatif sedikit, sehingga menghasilkan campuran semen yang agak kental dan berkekuatan tinggi<\/li>\n<li>Rasio W\/C<strong>besar<\/strong>Semakin banyak airnya, semakin baik aliran betonnya, tetapi kekuatannya menurun<\/li>\n<\/ul>\n<p>Dalam pekerjaan jangkar tanah dan baut batu pada konstruksi lereng,<strong>W\/C=50%<\/strong>...digunakan secara luas sebagai nilai perbandingan standar (Pedoman Desain NEXCO, \u201cStandar Desain dan Konstruksi Ground Anchor\u201d dari Asosiasi Teknik Geoteknik, dll.). Jika ingin membuatnya lebih keras, sesuaikan dalam kisaran W\/C=40\u201345%; sedangkan jika ingin membuatnya lebih lunak, sesuaikan dalam kisaran W\/C=55\u201360%.<\/p>\n<p>Beberapa hari yang lalu saya menerima pertanyaan, apa dasar perhitungan 1.230 kg per 1 m\u00b3 untuk campuran semen?<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7841\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/08\/88f450b862c7d3e65504df87e9067284.jpg\" alt=\"Semen Susu - Selesai\" width=\"600\" height=\"450\" \/><\/p>\n<p>Sudah seperti ini sejak dulu, jadi aku nggak pernah mikir apa-apa w<\/p>\n<p>Meskipun pasir semprot memang memiliki dasar ilmiah yang kuat, tapi kita belum pernah melihat semen cair, bukan?<\/p>\n<p>&nbsp;<\/p>\n<h2>Dasar perhitungan 1 m\u00b3 = 1.230 kg | Diturunkan dari berat jenis semen sebesar 3,15<\/h2>\n<p>Angka \u201csemen susu sebesar 1.230 kg per 1 m\u00b3\u201d memang sering muncul dalam perhitungan industri, tapi kalau ditanya dasarnya, ternyata banyak orang yang tidak bisa menjawabnya, lho w<\/p>\n<p>Rahasia di baliknya adalah<strong>Biasanya, berat jenis (densitas) semen Portland sekitar 3,15<\/strong>Hal ini didasarkan pada fakta tersebut. Nilai berat jenis 3,15 merupakan nilai representatif yang juga digunakan sebagai standar dalam JIS R 5201 (Metode Pengujian Fisik Semen).<\/p>\n<p>Jika dihitung mundur berdasarkan rasio air-semen (W\/C) = 50%, berikut adalah jumlah semen yang diperlukan untuk membuat 1 m\u00b3 (=1.000 L) campuran semen.<\/p>\n<table>\n<thead>\n<tr>\n<th>Langkah perhitungan<\/th>\n<th>\u5f0f<\/th>\n<th>Hasil<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u2460 Volume target<\/td>\n<td>Volume semen + volume air = 1.000 L<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>\u2461 W\/C=50%<\/td>\n<td>Massa air = 0,5 \u00d7 massa semen (C)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>\u2462 Volume semen<\/td>\n<td>C \u00f7 3,15<\/td>\n<td>L<\/td>\n<\/tr>\n<tr>\n<td>\u2463 Volume air<\/td>\n<td>0,5C \u00f7 1,0<\/td>\n<td>L<\/td>\n<\/tr>\n<tr>\n<td>\u2464 Koalisi<\/td>\n<td>C\/3,15 + 0,5C = 1.000<\/td>\n<td>C(0,3175 + 0,5) = 1.000<\/td>\n<\/tr>\n<tr>\n<td>\u2465 Menyelesaikan soal C<\/td>\n<td>C = 1.000 \u00f7 0,8175<\/td>\n<td>\u7d04<strong>1.223 kg<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u2466 Pembulatan ke atas<\/td>\n<td>Pembulatan nilai untuk perhitungan<\/td>\n<td><strong>1.230 kg<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Artinya, \u201cSecara tepatnya sekitar 1.223 kg hingga 1.225 kg, tetapi untuk memudahkan perhitungan akumulatif, angka tersebut dibulatkan ke atas menjadi 1.230 kg,\u201d itulah yang dimaksud<strong>Siapa Sebenarnya 1.230 kg Itu?<\/strong>. Dulu, rumus perhitungan ini biasanya tercantum dalam tabel komposisi atau dokumen desain, tetapi entah sejak kapan, yang tersisa hanyalah angka \u201c1.230 kg\u201d itu sendiri.<\/p>\n<p>Jadi, mari kita coba menghitungnya sekali<\/p>\n<p>Syaratnya, semen biasa, W\/C=50%<\/p>\n<p>ketika<\/p>\n<p>Semen biasa, berat jenis 3,15<\/p>\n<p>Semen biasa: 1230 kg \u00f7 3,15 = 390,5 L<\/p>\n<p>Air: 1230 kg \u00d7 501 TP 3 T = 615 L<\/p>\n<p><span style=\"font-size: 150%;\"><strong><span style=\"color: #ff0000;\">390,5 + 615 = 1005,5 L \/ 1 m\u00b3<\/span><\/strong><\/span><\/p>\n<p>Secara tepatnya 1.225 kg, tapi dibulatkan menjadi 1.230 kg?<wbr \/>Kurasa kira-kira seperti itu.<\/p>\n<p>&nbsp;<\/p>\n<p>Sebenarnya saya hanya bisa memikirkan hal ini saja, adakah yang tahu tentang hal ini?<\/p>\n<p>Saya akan sangat berterima kasih jika Anda dapat memberitahukannya kepada saya.<\/p>\n<p>&nbsp;<\/p>\n<p>Dulu, banyak bukti yang tercantum dalam buku-buku.<\/p>\n<p>Tanpa disadari, hal itu semakin disederhanakan hingga akhirnya menghilang.<\/p>\n<p>Dulu memang repot karena harus menganalisisnya berdasarkan tingkat kerugian dan sebagainya, tapi sekarang justru hal itu yang kita inginkan, ya w<\/p>\n<p>Digitalisasi memang punya sisi baik dan buruk, ya...<\/p>\n<p>&nbsp;<\/p>\n<h2>Praktik Perhitungan Campuran | Tabel Referensi Berdasarkan Rasio Air-Semen<\/h2>\n<p>Dalam praktiknya, seringkali rasio W\/C=50% saja tidak cukup. Penyesuaian kecil perlu dilakukan berdasarkan kondisi tanah asli, tekanan injeksi, panjang elemen penahan, serta musim (suhu udara). Dengan rasio W\/C yang sering digunakan,<strong>Jumlah semen dan air yang diperlukan per 1 m\u00b3<\/strong>Saya akan menyusunnya dalam bentuk tabel ringkasan.<\/p>\n<table>\n<thead>\n<tr>\n<th>Rasio W\/C<\/th>\n<th>Jumlah semen (per 1 m\u00b3)<\/th>\n<th>Volume air (per 1 m\u00b3)<\/th>\n<th>Massa total (berat jenis)<\/th>\n<th>Kegunaan Utama<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>40%<\/strong><\/td>\n<td>sekitar 1.398 kg<\/td>\n<td>sekitar 559 kg<\/td>\n<td>sekitar 1.957 kg\/m\u00b3<\/td>\n<td>Jika ingin mendapatkan kekuatan yang tinggi, atur pengikat agar lebih keras<\/td>\n<\/tr>\n<tr>\n<td><strong>45%<\/strong><\/td>\n<td>sekitar 1.313 kg<\/td>\n<td>sekitar 591 kg<\/td>\n<td>sekitar 1.904 kg\/m\u00b3<\/td>\n<td>Sedikit lebih keras dari standar, untuk menghadapi musim dingin, dll.<\/td>\n<\/tr>\n<tr>\n<td><strong>50% (standar)<\/strong><\/td>\n<td>\u7d04<strong>1.230 kg<\/strong><\/td>\n<td>\u7d04<strong>615 kg<\/strong><\/td>\n<td>sekitar 1.845 kg\/m\u00b3<\/td>\n<td><strong>Komposisi standar untuk jangkar tanah dan baut batu<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>55%<\/strong><\/td>\n<td>sekitar 1.159 kg<\/td>\n<td>sekitar 637 kg<\/td>\n<td>sekitar 1.796 kg\/m\u00b3<\/td>\n<td>Jika ingin meningkatkan kemampuan injeksi, gunakan batang yang panjang, dll.<\/td>\n<\/tr>\n<tr>\n<td><strong>60%<\/strong><\/td>\n<td>sekitar 1.094 kg<\/td>\n<td>sekitar 656 kg<\/td>\n<td>sekitar 1.750 kg\/m\u00b3<\/td>\n<td>Agak lunak, digunakan sebagai bahan injeksi untuk perbaikan tanah, dll.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u203bPerhitungan di atas menggunakan semen Portland biasa (berat jenis 3,15), tanpa memperhitungkan tingkat kerugian, dan dihitung berdasarkan nilai teoritis per 1 m\u00b3. Dalam perhitungan aktual, di sini<strong>Tingkat kerugian (sekitar 5\u2013101 TP3T)<\/strong>akan ditambahkan.<\/p>\n<p>Perhitungan praktis campuran semen yang memperhitungkan tingkat kerugian akan dibahas dalam artikel terpisah<a href=\"https:\/\/norimen.net\/id\/%E3%82%BB%E3%83%A1%E3%83%B3%E3%83%88%E3%83%9F%E3%83%AB%E3%82%AF%E3%81%AE%E7%AE%97%E5%87%BA%E6%96%B9%E6%B3%95%E3%81%A8%E3%83%AD%E3%82%B9%E7%8E%87\/\" target=\"_blank\" rel=\"noopener\">Cara Menghitung Susu Semen dan Tingkat Kerugian<\/a>Telah dirangkum di sini.<\/p>\n<p>Di lokasi proyek kami, ketika mengubah komposisi campuran, nilai yang ditentukan dalam dokumen desain (rasio air-semen) menjadi dasar utama, namun dalam batas tersebut<strong>\u201cPola kenaikan tekanan injeksi\u201d, \u201cKondisi pengerasan badan penahan\u201d, \u201cKecepatan pengerasan berdasarkan suhu udara\u201d<\/strong>Kami akan melakukan penyesuaian kecil sambil memperhatikan ketiga hal tersebut. Meskipun ini hanya berdasarkan pengalaman, namun hal ini<strong>\"Jangkar yang Sangat Kuat\"<\/strong>Hal ini merupakan salah satu faktor yang membedakan antara \u201cjangkar yang masih sedikit mengkhawatirkan\u201d dan yang lainnya, sehingga komposisinya tidak boleh dianggap remeh.<\/p>\n<p>\ud83d\udc49 Artikel terkait: Panduan lengkap perhitungan formulasi adalah <a href=\"https:\/\/norimen.net\/id\/cement-milk-mix-design\/\" target=\"_blank\" rel=\"noopener\">Perhitungan Komposisi Adonan Semen | Tabel Referensi Berdasarkan Rasio Air-Semen (W\/C) dan Cara Menentukannya di Lapangan, Dijelaskan oleh Ahli Pengerjaan Lereng<\/a> Di sini telah dirangkum secara lengkap, termasuk tabel referensi cepat untuk rasio W\/C 40\u201360 dan %.<\/p>\n<p>Sampai jumpa lagi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Halo semuanya. Ini Enta. Apa itu campuran semen milk? | Rasio W\/C 50% merupakan standar dalam pekerjaan lereng. Pada dasarnya, semen milk adalah bahan injeksi berbentuk pasta yang terbuat dari campuran bubuk semen dan air. Dalam pekerjaan lereng, metode ini digunakan dalam konstruksi ground anchor, konstruksi rock bolt, dan pemasangan tulangan baja\u2026<\/p>","protected":false},"author":2,"featured_media":5569,"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":[28,30],"tags":[48,49,116,377],"class_list":["post-50997","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ground-anchor","category-lock-bolt","tag-48","tag-49","tag-116","tag-377"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - 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