ASTM C1609/C1609M-24由美国国家标准学会 US-ANSI 发布于 。
ASTM C1609/C1609M-24 纤维增强混凝土弯曲性能的标准试验方法(使用带有第三点载荷的梁)的最新版本是哪一版?
最新版本是 ASTM C1609/C1609M-24 。
1.1 This test method evaluates the flexural performance of fiber-reinforced concrete using parameters derived from the load-deflection curve obtained by testing a simply supported beam under third-point loading using a closed-loop, servo-controlled testing system. 1.2 This test method provides for the determination of first-peak and peak loads and the corresponding stresses calculated by inserting them in the formula for modulus of rupture given in Eq 1 . It also requires determination of residual loads at specified deflections, the corresponding residual strengths calculated by inserting them in the formula for modulus of rupture given in Eq 1 (see Note 1 ). It provides for determination of specimen toughness based on the area under the load-deflection curve up to a prescribed deflection (see Note 2 ) and the corresponding equivalent flexural strength ratio. Note 1: Residual strength is not a true stress but an engineering stress computed using simple engineering bending theory for linear elastic materials and gross (uncracked) section properties. Note 2: Specimen toughness expressed in terms of the area under the load-deflection curve is an indication of the energy absorption capability of the particular test specimen, and its magnitude depends directly on the geometry of the test specimen and the loading configuration. 1.3 This test method utilizes two preferred specimen sizes of 100 mm by 100 mm by 350 mm [4 in. by 4 in. by 14 in.] tested on a 300 mm [12 in.] span, or 150 mm by 150 mm by 500 mm [6 in. by 6 in. by 20 in.] tested on a 450 mm [18 in.] span. A specimen size different from the two preferred specimen sizes is permissible. 1.4 Units— The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
通过选择合适的试验附件,即可以按照大部分的国际标准开展试验,例如:EN14651标准,用开口裂缝计控制钢纤维混凝土梁切口位移张开速度的挠度试验ASTMC1609标准,纤维增强型混凝土梁弯曲试验EN14488标准,板型试件能量吸收试验ASTMC1550标准,纤维增强混凝土圆板型试件中心加载的弯曲韧性试验系统的精确位移控制试验模式可以准确测量纤维混凝土和聚合物、喷射混凝土等特殊建筑材料的延展性,评估其混凝土初次开裂后的剩余承载力...
、 拉伸模量 、泊松比试样非连续或连续性纤维增强复合材料(高模量)带或不带加强片试样均可试样层压板相对于测试方向是平衡和对称夹具楔形拉伸夹具备注可配合使用应变片/引伸计ASTM D1781滚筒剥离胶粘剂标准试验方法标准粘合强度试验目的W76.2 × L305(mm)试样滚筒剥离试验夹具夹具标准ASTM D695硬质塑料压缩性能的标准试验方法试验目的抗压强度、抗压屈服点、模量试样未增强和增强塑料的直圆柱体或棱柱体长度是其主宽度或直径的两倍...
其他复合材料的冲击案例:类似ISO 179简支梁的方式冲击复合材料纤维增强混凝土冲击测试 泡沫铝复合材料板穿透冲击INSTRON 9400系列试验机9400是INSTRON最新一代落锤冲击试验机,在传承安全、精确、灵活性等优点外,它搭载全新Bluehill平台测试软件,基于触控设计的全新操作流程,让设备使用更加便捷、更智能、更安全,大幅提升客户体验。...
使用岛津试验机与夹具进行碳纸180°剥离试验结语使用岛津的AGS-X或AGX-V电子万能试验机,配合拉伸、压缩、三点弯曲、剥离各种不同的夹具与附件,符合现行标准或行业客户的自身测试要求,可以满足您对碳纸的各种力学测试与质量控制的需要,为碳纸规模化制造保驾护航。 撰稿人:王正宇*本文内容非商业广告,仅供专业人士参考。...
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