{"id":2398,"date":"2025-09-26T13:45:07","date_gmt":"2025-09-26T06:45:07","guid":{"rendered":"https:\/\/www.its.ac.id\/publikasi\/?p=2398"},"modified":"2025-09-26T13:45:08","modified_gmt":"2025-09-26T06:45:08","slug":"compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/","title":{"rendered":"Compressive Strength Performance of High-Volume Fly Ash Concrete with CaCO3 Addition"},"content":{"rendered":"<div id=\"authorString\"><em>Yosi Noviari Wibowo, Tatas Tatas, Yuyun Tajunnisa, Amalia Firdaus Mawardi, Miftaqul Zanah<\/em><\/div>\n<p>&nbsp;<\/p>\n<div id=\"articleAbstract\">\n<h4>Abstract<\/h4>\n<div>\u00a0This study investigates the compressive strength performance of High-Volume Fly Ash (HVFA) concrete with added CaCO\u2083 as a sustainable alternative to Ordinary Portland Cement (OPC) for infrastructure applications. The experimental research replaces a significant portion of cement with fly ash\u2014a byproduct of coal combustion\u2014aiming to reduce greenhouse gas emissions associated with concrete production. Two HVFA concrete mixtures were developed, substituting 37% and 47% of cement content with fly ash and adding 3% CaCO\u2083 to enhance mechanical properties. Material characterization, including XRF and XRD analysis, confirmed the suitability of fly ash for concrete production based on ASTM C618-19 standards. Aggregate gradation, moisture content, and specific gravity tests were conducted to optimize the mix design. Compressive strength tests were performed at 7, 14, and 28 days, showing that HVFA concrete with 37% fly ash substitution achieved higher strength values, reaching 25.92 MPa at 28 days, compared to the 47% mix, which reached 24.68 MPa. Slump tests indicated sufficient workability, with a measured slump of 10 cm for FA37C3 and 12 for FA47C3. These findings suggest that HVFA concrete with moderate fly ash substitution, complemented by CaCO\u2083 addition, can achieve compressive strength and workability comparable to OPC, supporting the development of environmentally friendly concrete solutions.<\/div>\n<\/div>\n<div id=\"articleSubject\">\n<h4>Keywords<\/h4>\n<div>CaCO3, Compressive strength, High-volume fly ash, Workability<\/div>\n<div><a href=\"https:\/\/iptek.its.ac.id\/index.php\/joe\/article\/view\/22092\">PDF<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Yosi Noviari Wibowo, Tatas Tatas, Yuyun Tajunnisa, Amalia Firdaus Mawardi, Miftaqul Zanah &nbsp; Abstract \u00a0This study investigates the compressive strength performance of High-Volume Fly Ash (HVFA) concrete with added CaCO\u2083 as a sustainable alternative to Ordinary Portland Cement (OPC) for infrastructure applications. The experimental research replaces a significant portion of cement with fly ash\u2014a byproduct [&hellip;]<\/p>\n","protected":false},"author":250,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[248],"tags":[],"class_list":["post-2398","post","type-post","status-publish","format-standard","hentry","category-joe-journal"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Compressive Strength Performance of High-Volume Fly Ash Concrete with CaCO3 Addition - IJC ( ITS Journal Center )<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Compressive Strength Performance of High-Volume Fly Ash Concrete with CaCO3 Addition - IJC ( ITS Journal Center )\" \/>\n<meta property=\"og:description\" content=\"Yosi Noviari Wibowo, Tatas Tatas, Yuyun Tajunnisa, Amalia Firdaus Mawardi, Miftaqul Zanah &nbsp; Abstract \u00a0This study investigates the compressive strength performance of High-Volume Fly Ash (HVFA) concrete with added CaCO\u2083 as a sustainable alternative to Ordinary Portland Cement (OPC) for infrastructure applications. The experimental research replaces a significant portion of cement with fly ash\u2014a byproduct [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\" \/>\n<meta property=\"og:site_name\" content=\"IJC ( ITS Journal Center )\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-26T06:45:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-26T06:45:08+00:00\" \/>\n<meta name=\"author\" content=\"itspublikasi\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"itspublikasi\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\"},\"author\":{\"name\":\"itspublikasi\",\"@id\":\"https:\/\/www.its.ac.id\/publikasi\/#\/schema\/person\/1241b8776d05c54fbc628c0a83d59e3c\"},\"headline\":\"Compressive Strength Performance of High-Volume Fly Ash Concrete with CaCO3 Addition\",\"datePublished\":\"2025-09-26T06:45:07+00:00\",\"dateModified\":\"2025-09-26T06:45:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\"},\"wordCount\":228,\"commentCount\":0,\"articleSection\":[\"joe journal\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\",\"url\":\"https:\/\/www.its.ac.id\/publikasi\/en\/2025\/09\/26\/compressive-strength-performance-of-high-volume-fly-ash-concrete-with-caco3-addition-2\/\",\"name\":\"Compressive Strength Performance of High-Volume Fly Ash Concrete with CaCO3 Addition - 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