{"id":7876,"date":"2026-03-18T14:26:32","date_gmt":"2026-03-18T06:26:32","guid":{"rendered":"https:\/\/www.qualitester.com\/?page_id=7876"},"modified":"2026-03-18T14:53:03","modified_gmt":"2026-03-18T06:53:03","slug":"astm-d6241","status":"publish","type":"page","link":"https:\/\/www.qualitester.com\/ja\/standards\/astm-d6241\/","title":{"rendered":"ASTM D6241"},"content":{"rendered":"<p data-start=\"339\" data-end=\"680\"><strong data-start=\"339\" data-end=\"353\">ASTM D6241<\/strong> defines a standardized method for determining the <strong data-start=\"404\" data-end=\"481\">static puncture strength of geotextiles and geosynthetic-related products<\/strong>. Engineers and quality control professionals widely use this test to evaluate how well geotextiles resist penetration forces that occur during installation and service in civil engineering projects.<\/p>\n<p data-start=\"682\" data-end=\"1069\">Geotextiles frequently serve as <strong data-start=\"714\" data-end=\"801\">separation layers, filtration media, reinforcement components, and drainage systems<\/strong> in roads, railways, embankments, and landfill constructions. During installation, sharp aggregates or external loads can generate localized stresses. ASTM D6241 helps manufacturers and engineers quantify how effectively a material withstands these concentrated loads.<\/p>\n<p data-start=\"1071\" data-end=\"1339\">The method measures the <strong data-start=\"1095\" data-end=\"1185\">maximum force required to puncture a specimen using a 50 mm diameter cylindrical probe<\/strong>. Because the probe applies multidirectional stress to the unsupported area of the specimen, the test closely represents real-world mechanical conditions.<\/p>\n<p data-start=\"1341\" data-end=\"1496\">This test is also commonly known as the <strong data-start=\"1381\" data-end=\"1402\">CBR puncture test<\/strong>, reflecting its similarity to the loading mechanism used in California Bearing Ratio testing.<\/p>\n<h2 data-section-id=\"157i01f\" data-start=\"1503\" data-end=\"1547\">Geotextiles Static Puncture Strength Test<\/h2>\n<p data-start=\"1549\" data-end=\"1863\">\u306e <strong data-start=\"1553\" data-end=\"1598\">geotextiles static puncture strength test<\/strong> described in ASTM D6241 provides an index value that characterizes a material\u2019s resistance to localized penetration. The test does not simulate a specific field condition but offers a <strong data-start=\"1783\" data-end=\"1817\">reliable comparative indicator<\/strong> for evaluating different geotextile products.<\/p>\n<p data-start=\"1865\" data-end=\"1881\">During the test:<\/p>\n<ul>\n<li data-start=\"1885\" data-end=\"1955\">A specimen is <strong data-start=\"1899\" data-end=\"1934\">clamped between circular plates<\/strong> without pre-tension.<\/li>\n<li data-start=\"1958\" data-end=\"2037\">\u3042 <strong data-start=\"1960\" data-end=\"1993\">50 mm steel cylindrical probe<\/strong> presses against the center of the specimen.<\/li>\n<li data-start=\"2040\" data-end=\"2092\">The probe continues moving until <strong data-start=\"2073\" data-end=\"2091\">rupture occurs<\/strong>.<\/li>\n<li data-start=\"2095\" data-end=\"2152\">The instrument records the <strong data-start=\"2122\" data-end=\"2151\">maximum force at puncture<\/strong>.<\/li>\n<\/ul>\n<p data-start=\"2154\" data-end=\"2298\">The resulting value reflects the ability of the geotextile to resist damage from <strong data-start=\"2235\" data-end=\"2297\">coarse aggregates, stones, or construction equipment loads<\/strong>.<\/p>\n<p data-start=\"2300\" data-end=\"2458\">Manufacturers often use these data to <strong data-start=\"2338\" data-end=\"2370\">optimize material structures<\/strong>, while project engineers use them to <strong data-start=\"2408\" data-end=\"2457\">verify compliance with project specifications<\/strong>.<\/p>\n<h2 data-section-id=\"emc074\" data-start=\"2465\" data-end=\"2505\">Geosynthetic Puncture Resistance Test<\/h2>\n<p data-start=\"2507\" data-end=\"2798\">\u306e <strong data-start=\"2511\" data-end=\"2552\">geosynthetic puncture resistance test<\/strong> also applies to several <strong data-start=\"2577\" data-end=\"2610\">geosynthetic-related products<\/strong>, including geocomposites and geomembrane-supported structures. The method focuses on evaluating the <strong data-start=\"2711\" data-end=\"2754\">index strength and deformation behavior<\/strong> of these materials under localized loading.<\/p>\n<p data-start=\"2800\" data-end=\"2852\">ASTM D6241 specifies several key testing parameters:<\/p>\n<ul>\n<li data-start=\"2854\" data-end=\"2877\"><strong data-start=\"2854\" data-end=\"2877\">Probe specification<\/strong>\n<ul>\n<li data-start=\"2881\" data-end=\"2906\">Cylindrical steel probe<\/li>\n<li data-start=\"2909\" data-end=\"2934\">Diameter: <strong data-start=\"2919\" data-end=\"2932\">50 \u00b1 1 mm<\/strong><\/li>\n<li data-start=\"2937\" data-end=\"2966\">Radial edge: <strong data-start=\"2950\" data-end=\"2966\">2.5 \u00b1 0.5 mm<\/strong><\/li>\n<\/ul>\n<\/li>\n<li data-start=\"2968\" data-end=\"2987\"><strong data-start=\"2968\" data-end=\"2987\">Clamping system<\/strong>\n<ul>\n<li data-start=\"2991\" data-end=\"3017\">Circular clamping plates<\/li>\n<li data-start=\"3020\" data-end=\"3064\">Internal diameter approximately <strong data-start=\"3052\" data-end=\"3062\">150 mm<\/strong><\/li>\n<li data-start=\"3067\" data-end=\"3105\">Designed to minimize specimen slippage<\/li>\n<\/ul>\n<\/li>\n<li data-start=\"3107\" data-end=\"3121\"><strong data-start=\"3107\" data-end=\"3121\">\u30c6\u30b9\u30c8\u901f\u5ea6<br \/>\n<\/strong>Common testing speeds include:<\/p>\n<ul>\n<li data-start=\"3107\" data-end=\"3121\"><strong data-start=\"3157\" data-end=\"3170\">30 mm\/min<\/strong><\/li>\n<li data-start=\"3107\" data-end=\"3121\"><strong data-start=\"3173\" data-end=\"3186\">50 mm\/min<\/strong><\/li>\n<li data-start=\"3107\" data-end=\"3121\"><strong data-start=\"3189\" data-end=\"3203\">100 mm\/min<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p data-start=\"3205\" data-end=\"3355\">The standard emphasizes proper clamping to ensure that <strong data-start=\"3260\" data-end=\"3300\">specimen slippage remains below 5 mm<\/strong>, ensuring the accuracy of puncture force measurements.<\/p>\n<h2 data-section-id=\"157i01f\" data-start=\"1503\" data-end=\"1547\">Puncture Resistance Test Apparatus Required for ASTM D6241<\/h2>\n<p data-start=\"3405\" data-end=\"3576\">Reliable testing requires a <strong data-start=\"3433\" data-end=\"3490\">precision universal testing machine or tensile tester<\/strong> capable of applying controlled loading rates and recording force-displacement curves.<\/p>\n<p data-start=\"3578\" data-end=\"3611\">The apparatus typically includes:<\/p>\n<ul>\n<li data-start=\"3615\" data-end=\"3661\"><strong data-start=\"3615\" data-end=\"3661\">Constant-rate-of-extension testing machine<\/strong><\/li>\n<li data-start=\"3664\" data-end=\"3688\"><strong data-start=\"3664\" data-end=\"3688\">50 mm puncture probe<\/strong><\/li>\n<li data-start=\"3691\" data-end=\"3719\"><strong data-start=\"3691\" data-end=\"3719\">Circular clamping plates<\/strong><\/li>\n<li data-start=\"3722\" data-end=\"3749\"><strong data-start=\"3722\" data-end=\"3749\">Load measurement system<\/strong><\/li>\n<li data-start=\"3752\" data-end=\"3791\"><strong data-start=\"3752\" data-end=\"3791\">Displacement measurement capability<\/strong><\/li>\n<\/ul>\n<p><a href=\"https:\/\/www.qualitester.com\/ja\/%e8%a3%bd%e5%93%81\/tst-01-universal-testing-machine\/\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignleft wp-image-7877 size-medium\" src=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic-300x300.webp\" alt=\"ASTM D6241 Static Puncture Strength Test for Geosynthetic\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic-300x300.webp 300w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic-150x150.webp 150w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic-12x12.webp 12w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic-100x100.webp 100w, https:\/\/www.qualitester.com\/wp-content\/uploads\/2026\/03\/ASTM-D6241-Static-Puncture-Strength-Test-for-Geosynthetic.webp 600w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p data-start=\"3793\" data-end=\"3971\">Modern testing systems also provide <strong data-start=\"3829\" data-end=\"3884\">digital curve recording and automatic data analysis<\/strong>, allowing laboratories to capture peak puncture force and displacement simultaneously.<\/p>\n<p data-start=\"3973\" data-end=\"4250\">A versatile solution for this application is the <strong data-start=\"4022\" data-end=\"4064\">\u30bb\u30eb\u30a4\u30f3\u30b9\u30c4\u30eb\u30e1\u30f3\u30c4 TST-01 <a href=\"https:\/\/www.qualitester.com\/ja\/%e8%a3%bd%e5%93%81\/tst-01-universal-testing-machine\/\" target=\"_blank\" rel=\"noopener\">\u5f15\u5f35\u8a66\u9a13\u6a5f<\/a><\/strong>. The system provides stable loading control through <strong data-start=\"4117\" data-end=\"4171\">PLC-driven architecture and a 7-inch HMI interface<\/strong>, allowing operators to monitor real-time force curves during puncture testing.<\/p>\n<p data-start=\"4252\" data-end=\"4603\">Its <strong data-start=\"4256\" data-end=\"4291\">precision ball lead screw drive<\/strong> ensures smooth motion and repeatable speed control, which is critical for maintaining the standardized loading rates required by ASTM D6241. With adjustable speeds from <strong data-start=\"4461\" data-end=\"4480\">1 to 500 mm\/min<\/strong>, laboratories can easily configure the instrument for puncture, tensile, peel, and tear testing using compatible fixtures.<\/p>\n<h2 data-section-id=\"1d8ozem\" data-start=\"4610\" data-end=\"4646\">Puncture Test Specimen Preparation and Sampling<\/h2>\n<p data-start=\"4648\" data-end=\"4738\">ASTM D6241 provides clear guidance on specimen selection to ensure representative results.<\/p>\n<p data-start=\"4740\" data-end=\"4765\">Key requirements include:<\/p>\n<ul>\n<li data-start=\"4769\" data-end=\"4839\">Specimens should be <strong data-start=\"4789\" data-end=\"4839\">randomly distributed across the material width<\/strong><\/li>\n<li data-start=\"4842\" data-end=\"4910\">The sample edge must extend <strong data-start=\"4870\" data-end=\"4910\">at least 10 mm beyond the clamp edge<\/strong><\/li>\n<li data-start=\"4913\" data-end=\"4988\">The material should <strong data-start=\"4933\" data-end=\"4960\">exclude distorted areas<\/strong>, folds, or damaged sections<\/li>\n<li data-start=\"4991\" data-end=\"5074\">If no historical variability data exist, laboratories should test <strong data-start=\"5057\" data-end=\"5074\">ten specimens<\/strong><\/li>\n<\/ul>\n<p data-start=\"5076\" data-end=\"5235\">For some geosynthetics manufactured with <strong data-start=\"5117\" data-end=\"5162\">different surface structures on each side<\/strong>, both sides should be tested separately to obtain a complete evaluation.<\/p>\n<h2 data-section-id=\"zp02vx\" data-start=\"5242\" data-end=\"5268\">Test Procedure Overview<\/h2>\n<p data-start=\"5270\" data-end=\"5321\">The test procedure follows several important steps:<\/p>\n<ol>\n<li data-start=\"5326\" data-end=\"5413\"><strong data-start=\"5326\" data-end=\"5358\">Select a suitable load range<\/strong> so rupture occurs between 10% and 90% of full scale.<\/li>\n<li data-start=\"5417\" data-end=\"5486\"><strong data-start=\"5417\" data-end=\"5440\">Secure the specimen<\/strong> between the clamping rings without tension.<\/li>\n<li data-start=\"5490\" data-end=\"5537\"><strong data-start=\"5490\" data-end=\"5534\">Align the probe with the specimen center<\/strong>.<\/li>\n<li data-start=\"5541\" data-end=\"5590\"><strong data-start=\"5541\" data-end=\"5587\">Apply the load at the specified test speed<\/strong>.<\/li>\n<li data-start=\"5594\" data-end=\"5647\">Continue loading until <strong data-start=\"5617\" data-end=\"5644\">material rupture occurs<\/strong>.<\/li>\n<li data-start=\"5651\" data-end=\"5658\">Record:\n<ul>\n<li data-start=\"5651\" data-end=\"5658\"><strong data-start=\"5664\" data-end=\"5690\">Maximum puncture force<\/strong><\/li>\n<li data-start=\"5651\" data-end=\"5658\"><strong data-start=\"5696\" data-end=\"5723\">Displacement at rupture<\/strong><\/li>\n<li data-start=\"5651\" data-end=\"5658\"><strong data-start=\"5729\" data-end=\"5759\">Specimen slippage (if any)<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p data-start=\"5761\" data-end=\"5831\">If specimen slippage exceeds <strong data-start=\"5790\" data-end=\"5798\">5 mm<\/strong>, the result should be discarded. The final puncture strength is typically reported as the <strong data-start=\"5890\" data-end=\"5938\">average maximum force of all valid specimens<\/strong>.<\/p>\n<h2 data-section-id=\"1c0x4cz\" data-start=\"5946\" data-end=\"5979\">Why ASTM D6241 Testing Matters<\/h2>\n<p data-start=\"5981\" data-end=\"6179\"><a href=\"https:\/\/store.astm.org\/d6241-22a.html\" target=\"_blank\" rel=\"noopener nofollow\">ASTM D6241<\/a> plays a critical role in <strong data-start=\"6017\" data-end=\"6053\">geosynthetic material evaluation<\/strong>. Engineers rely on this index test to ensure geotextiles can withstand <strong data-start=\"6125\" data-end=\"6178\">construction stresses and long-term service loads<\/strong>.<\/p>\n<p data-start=\"6181\" data-end=\"6235\">Key benefits of performing ASTM D6241 testing include:<\/p>\n<ul>\n<li data-start=\"6239\" data-end=\"6272\">Verifying <strong data-start=\"6249\" data-end=\"6272\">material durability<\/strong><\/li>\n<li data-start=\"6275\" data-end=\"6330\">\u78ba\u4fdd <strong data-start=\"6284\" data-end=\"6330\">compliance with engineering specifications<\/strong><\/li>\n<li data-start=\"6333\" data-end=\"6380\">\u30b5\u30dd\u30fc\u30c8 <strong data-start=\"6344\" data-end=\"6380\">quality control in manufacturing<\/strong><\/li>\n<li data-start=\"6383\" data-end=\"6428\">\u6bd4\u8f03 <strong data-start=\"6393\" data-end=\"6428\">different geotextile structures<\/strong><\/li>\n<li data-start=\"6431\" data-end=\"6471\">Reducing <strong data-start=\"6440\" data-end=\"6471\">risk of installation damage<\/strong><\/li>\n<\/ul>\n<p data-start=\"6473\" data-end=\"6636\">With accurate instrumentation and standardized procedures, laboratories can generate <strong data-start=\"6558\" data-end=\"6593\">reliable puncture strength data<\/strong> that supports safer infrastructure design.<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM D6241\u306f\u3001\u30b8\u30aa\u30c6\u30ad\u30b9\u30bf\u30a4\u30eb\u3068\u30b8\u30aa\u30b7\u30f3\u30bb\u30c6\u30a3\u30c3\u30af\u30b9\u95a2\u9023\u88fd\u54c1\u306e\u9759\u7684\u7a7f\u523a\u5f37\u5ea6\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u65b9\u6cd5\u3092\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u3084\u54c1\u8cea\u7ba1\u7406\u306e\u5c02\u9580\u5bb6\u306f\u3001\u3053\u306e\u8a66\u9a13\u3092\u5e83\u304f\u5229\u7528\u3057\u3066\u3001\u30b8\u30aa\u30c6\u30ad\u30b9\u30bf\u30a4\u30eb\u304c\u571f\u6728\u5de5\u4e8b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u304a\u3051\u308b\u65bd\u5de5\u4e2d\u3084\u4f7f\u7528\u4e2d\u306b\u767a\u751f\u3059\u308b\u8cab\u901a\u529b\u306b\u5bfe\u3057\u3066\u3069\u306e\u7a0b\u5ea6\u62b5\u6297\u3067\u304d\u308b\u304b\u3092\u8a55\u4fa1\u3057\u3066\u3044\u307e\u3059\u3002\u30b8\u30aa\u30c6\u30ad\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u9053\u8def\u3001\u9244\u9053\u3001\u5824\u9632\u3001\u57cb\u7acb\u5730\u306e\u5efa\u8a2d\u306b\u304a\u3044\u3066\u3001\u5206\u96e2\u5c64\u3001\u308d\u904e\u5a92\u4f53\u3001\u88dc\u5f37\u90e8\u54c1\u3001\u6392\u6c34\u30b7\u30b9\u30c6\u30e0\u3068\u3057\u3066\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u65bd\u5de5\u4e2d\u3001\u92ed\u5229\u306a\u9aa8\u6750\u3084\u5916\u90e8\u8377\u91cd\u306b\u3088\u3063\u3066\u5c40\u6240\u7684\u306a\u5fdc\u529b\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002ASTM D6241\u306f\u3001\u6750\u6599\u304c\u3053\u306e\u3088\u3046\u306a\u96c6\u4e2d\u8377\u91cd\u306b\u3069\u306e\u7a0b\u5ea6\u52b9\u679c\u7684\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3092\u3001\u88fd\u9020\u696d\u8005\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u6570\u5024\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u3067\u306f\u3001\u76f4\u5f8450mm\u306e\u5186\u7b52\u5f62\u30d7\u30ed\u30fc\u30d6\u3092\u7528\u3044\u3066\u8a66\u9a13\u7247\u3092\u7a7f\u5b54\u3059\u308b\u306e\u306b\u5fc5\u8981\u306a\u6700\u5927\u529b\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u30d7\u30ed\u30fc\u30d6\u306e\u76f4\u5f84\u306f50mm\u3067\u3042\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.qualitester.com\/ja\/standards\/astm-d6241\/\"> <span class=\"screen-reader-text\">ASTM D6241<\/span> \u3082\u3063\u3068\u8aad\u3080 \"<\/a><\/p>","protected":false},"author":4,"featured_media":0,"parent":4948,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"class_list":["post-7876","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/pages\/7876","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/comments?post=7876"}],"version-history":[{"count":0,"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/pages\/7876\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/pages\/4948"}],"wp:attachment":[{"href":"https:\/\/www.qualitester.com\/ja\/wp-json\/wp\/v2\/media?parent=7876"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}