{"id":120,"date":"2025-01-21T07:34:39","date_gmt":"2025-01-21T07:34:39","guid":{"rendered":"https:\/\/v-line.beepigllc.com\/be-tong-bot-giai-phap-toi-uu-cho-he-thong-ham-mem-sgas-tai-san-bay-16\/"},"modified":"2026-07-25T07:49:08","modified_gmt":"2026-07-25T07:49:08","slug":"be-tong-bot-giai-phap-toi-uu-cho-he-thong-ham-mem-sgas-tai-san-bay-16","status":"publish","type":"post","link":"https:\/\/v-line.beepigllc.com\/en\/be-tong-bot-giai-phap-toi-uu-cho-he-thong-ham-mem-sgas-tai-san-bay-16\/","title":{"rendered":"Foam Concrete: The Optimal Solution for Airport Soft Ground Arresting Systems (SGAS)"},"content":{"rendered":"

Aviation safety is always the top concern in the aviation industry. To minimize the situation of aircraft overshooting the runway, the FAA (US Federal Aviation Administration) requires each runway to have a runway safety zone (RSA) of at least 300 meters long. However, many airports built before this regulation took effect do not meet standards, and space expansion is often not feasible due to high costs and space limitations.<\/p>\n

Soft Ground Arrestor System (SGAS) is considered an effective solution in such conditions. Among them, the EMAS (Engineered Materials Arrestor System) system is currently the only type of SGAS approved by the FAA. When the aircraft clears the runway and enters the EMAS system, the aircraft's wheels crush the blocks of material below, creating drag and helping the aircraft decelerate quickly.<\/p>\n

Foam concrete has emerged as a potential material for SGAS due to its high energy absorption capacity and superior mechanical properties. This article presents the results of research on the properties of foam concrete and its application to SGAS at airports.<\/p>\n

<\/p>\n

Structure and Requirements for SGAS Materials<\/b><\/h2>\n

<\/p>\n

Design requirements of the EMAS system<\/b><\/h3>\n

A typical EMAS system consists of crushable concrete blocks designed to gradually increase in thickness from start to finish. Materials in this system need to ensure:<\/p>\n

\t\u2022\tCompression resistance and appropriate density:<\/b> Soft enough for aircraft wheels to create significant drag but not too weak to withstand loads from rescue vehicles (ARFF).<\/p>\n

\t\u2022\tWithstands all weather conditions:<\/b> Resists deterioration caused by water, freezing temperatures, aircraft oils and UV rays.<\/p>\n

\t\u2022\tAbsorb energy effectively:<\/b> Helps the aircraft decelerate quickly without damaging the landing gear.<\/p>\n

<\/p>\n

Properties of Foam Concrete<\/b><\/h2>\n

<\/p>\n

Structure and properties<\/b><\/h4>\n

Foam concrete is a type of concrete that does not contain large aggregates, with density ranging from 320\u20131,900 kg\/m\u00b3. The most important property of foam concrete is its density (density), which determines its ability to withstand compression and absorb energy. Outstanding features include:<\/p>\n

\t\u2022\tHigh energy absorption ability<\/b> thanks to its porous structure.<\/p>\n

\t\u2022\tResistance to freezing and melting<\/b> good, suitable in harsh climatic conditions.<\/p>\n

\t\u2022\tWithstands harsh environments:<\/b> Unaffected by oil, water or other chemical agents.<\/p>\n

Effective compared to other materials<\/b><\/h4>\n

Research results indicate that foam concrete with a density of 600\u2013800 kg\/m\u00b3 has similar performance to materials currently used in SGAS systems. Samples with higher density (1,000 kg\/m\u00b3) are too stiff and do not produce the settlement necessary to brake the aircraft.<\/p>\n

<\/p>\n

Research Results and Applicability<\/b><\/h2>\n

<\/p>\n

Performance of foam concrete in SGAS system<\/b><\/h3>\n

\t\u2022\tLow density (600\u2013800 kg\/m\u00b3):<\/b> Provides sufficient drag to decelerate the aircraft without damaging the landing system.<\/p>\n

\t\u2022\tGood resistance:<\/b> Withstands large compression forces without sudden breakage, thanks to the addition of polypropylene fibers and fly ash in the composition.<\/p>\n

<\/p>\n

Benefits of using foam concrete<\/b><\/h3>\n

\t\u2022\tEnergy Absorption:<\/b> Meets stringent FAA requirements for braking performance.<\/p>\n

\t\u2022\tEnvironmentally friendly:<\/b> Recyclable and resistant to harsh environmental conditions.<\/p>\n

\t\u2022\tLow maintenance costs:<\/b> Reduce the time and cost of repairing blocks of materials after an incident.<\/p>\n

\n<\/p>\n

<\/p>\n

Conclude<\/b><\/h2>\n

Foam concrete is a material with great potential for use in SGAS systems, especially at airports with limited space. Research results show:<\/p>\n

\t1. Density of 600\u2013800 kg\/m\u00b3 is ideal for braking and energy absorption.<\/p>\n

\t2. Foam concrete withstands harsh weather elements and can be customized to suit each airport's specific conditions.<\/p>\n

\t3. SGAS systems made from foam concrete can be deployed effectively and economically, and contribute to improving aviation safety.<\/p><\/p>","protected":false},"excerpt":{"rendered":"

An to\u00e0n h\u00e0ng kh\u00f4ng lu\u00f4n l\u00e0 m\u1ed1i quan t\u00e2m h\u00e0ng \u0111\u1ea7u trong ng\u00e0nh h\u00e0ng kh\u00f4ng. \u0110\u1ec3 gi\u1ea3m thi\u1ec3u t\u00ecnh tr\u1ea1ng m\u00e1y bay v\u01b0\u1ee3t qu\u00e1 \u0111\u01b0\u1eddng b\u0103ng, FAA (C\u1ee5c H\u00e0ng Kh\u00f4ng Li\u00ean Bang M\u1ef9) y\u00eau c\u1ea7u m\u1ed7i \u0111\u01b0\u1eddng b\u0103ng ph\u1ea3i c\u00f3 v\u00f9ng an …<\/p>","protected":false},"author":0,"featured_media":245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghe-ung-dung"],"_links":{"self":[{"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/posts\/120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/comments?post=120"}],"version-history":[{"count":2,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/posts\/120\/revisions"}],"predecessor-version":[{"id":249,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/posts\/120\/revisions\/249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/media\/245"}],"wp:attachment":[{"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/media?parent=120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/categories?post=120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/v-line.beepigllc.com\/en\/wp-json\/wp\/v2\/tags?post=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}