91.100.30 混凝土和混凝土制品 标准查询与下载

23/30480340 DC BS EN 12390-4 测试硬化混凝土 第4部分 抗压强度 试验机规范

BS EN 12390-4 Testing hardened concrete - Part 4. Compressive strength. Specification for testing machines

T/QGCML 2271-2023 预拌混凝土含气量检测技术规范

本文件规定了预拌混凝土含气量检测技术规范的术语和定义、检测仪器、检测条件、检测方法、含气量计算结果判定、检测报告。 本文件适用于预拌混凝土的含气量检测技术。

Technical specifications for testing air content in ready-mixed concrete

T/QGCML 2270-2023 人行道透水混凝土应用技术规程

本文件规定了人行道透水混凝土应用技术规程的术语和定义、原辅料要求、施工工艺、性能检测。 本文件适用于人行道透水混凝土的制备及应用技术。

Technical regulations for application of permeable concrete for sidewalks

T/JSJCXH T/JSJCXH5-2023 海水珊瑚骨料快凝快硬混凝土 凝结时间的测定

本文件给出了海水珊瑚骨料快凝快硬混凝土凝结时间测试原理，规定了测试环境、仪器、材料、测试方法和试验报告。

Sea water coral aggregate fast setting and fast hardening concrete Determination of setting ti

T/SCJC P05-2023 超高性能混凝土排水管

 6　技术要求 6.1　管体混凝土  6.2　外观质量   6.3　尺寸偏差    6.4　内水压力    6.5　外压荷载     6.6　接口水压试验       6.7　保护层厚度      6.8　防腐 7　试验方法 7.1　试验设备     7.2　试验项目 8　检验规则 8.1　检验分类和检验项目    8.2　出厂检验    8.3　型式检验

Ultra high performance concrete sewer pipe

T/ZS 0537-2023 机制砂混凝土配合比设计规程

前言　 1  范围　 2  规范性引用文件　 3  术语和定义　 4  基本要求　 4.1  一般要求　 4.2  机制砂普通混凝土要求　 4.3  机制砂高性能混凝土要求　 5  原材料选用与要求　 5.1  机制砂普通混凝土　 5.2  机制砂高性能混凝土　 6  配合比设计　 6.1  机制砂普通混凝土　 6.2  机制砂高性能混凝土　

Specification for mix design of manufactured sand concrete

ASTM C1293/C1293M-23 测定碱-二氧化硅反应引起的混凝土长度变化的标准试验方法

Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction

ASTM D4791-19(2023) 粗集料中扁平颗粒、细长颗粒或扁平颗粒和细长颗粒的标准试验方法

Standard Test Method for Flat Particles, Elongated Particles, or Flat and Elongated Particles in Coarse Aggregate

T/CCPA 42-2023 硫铝铁系低碳胶凝材料

本文件规定了硫铝铁系低碳胶凝材料的术语和定义、组分材料、强度等级、技术要求、试验方法、检验规则、包装、标志、运输与贮存。

Low-carbon sulfur-aluminum-ferric cementitious materials

T/NMGGTXH 002-2023 环形混凝土电杆工艺技术规程

本文件规定了环形混凝土电杆的工艺技术规程，包括原材料、生产工艺要求、成品检验、标识、储存和运输、生产过程关键质量控制点与控制指标。

Technical specifications for the process of circular concrete poles

T/NMGGTXH 001-2023 环形钢棒混凝土电杆

本文件采用新型材料，满足国家标准，提高产品质量。 本文件规定了环形钢棒混凝土电杆原材料基构造、技术要求、试验方法、检验规则、标志、储存及运输、产品合格证。

Ring steel rod concrete pole

ASTM C1231/C1231M-23 使用无粘结盖测定硬化圆柱形混凝土试样抗压强度的标准实施规程

1.1  This practice covers requirements for a capping system using unbonded caps for testing concrete cylinders molded in accordance with Practice C31/C31M or C192/C192M , or cores obtained in accordance with Test Method C42/C42M . Unbonded neoprene caps of a defined hardness are permitted to be used for testing for a specified maximum number of reuses without qualification testing up to a certain concrete compressive strength level. Above that strength, level neoprene caps will require qualification testing. Qualification testing is required for all elastomeric materials other than neoprene regardless of the concrete strength. 1.2  Unbonded caps are not to be used for acceptance testing of concrete with compressive strength below 10 MPa [1500 psi ] or above 80 MPa [12 000 psi]. 1.3  The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 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. (Warning— Concrete specimens tested with unbonded caps rupture more violently than comparable specimens tested with bonded caps. The safety precautions given in the Manual of Aggregate and Concrete Testing are recommended.2 ) 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.

Standard Practice for Use of Unbonded Caps in Determination of Compressive Strength of Hardened Cylindrical Concrete Specimens

ASTM C873/C873M-23 圆柱形模具中现浇混凝土圆柱体抗压强度的标准试验方法

1.1  This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. This test method is limited to use in slabs where the depth of concrete is from 125 mm to 300 mm [5 in. to 12 in.]. 1.2  The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.3  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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Combining values from the two systems may result in non-conformance with the standard. 1.4  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. (Warning —Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.2 ) 1.5  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.

Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

ASTM C617/C617M-23 圆柱形混凝土试件封盖的标准实施规程

1.1  This practice covers apparatus, materials, and procedures for capping freshly molded concrete cylinders with neat cement and hardened cylinders and drilled concrete cores with high-strength gypsum paste or sulfur mortar. 1.2  The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.3  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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Combining values from the two systems may result in non-conformance with the standard. 1.4  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. For specific precaution statements see 4.3.1 and 6.2.4.1 . 1.5  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.

Standard Practice for Capping Cylindrical Concrete Specimens

T/SDCA 055-2023 泰山品质 轨道交通用水泥基复合材料 —活性粉末混凝土疏散平台板

1、主要技术内容为活性粉末混凝土疏散平台板生产工艺、原材料、设计规范等指标方向研究工作。 2、阶段性工作安排 1.分工情况 国检集团技术顾问蒋玉川及王阳从事标准编写、法律法规及技术标准的咨询。公司董事长张新龙及总经理张勇负责总体协调、技术指标提升、标准化研究。王明雷、乔梁负责技术标准的试验验证及标准梳理编写。 2.起草阶段 根据现有的企业标准，咨询认证联盟技术专家形成疏散平台的标准初稿，经公司技术验证通过，形成文稿。 3.征求意见阶段 发布在认证联盟官网等平台进行公示，征求公众意见。 4.标准审定阶段 根据各方意见，修改标准文本，形成正式团体标准发布。预期目标或技术指标：形成符合大部分企业规范的团体标准。

Taishan Quality Evacuation platform of reactive powder concrete used for urban rail transit

T/QGCML 1666-2023 装配式环保L型空心预制件

本文件规定了装配式环保L型空心预制件的术语定义、技术要求、试验方法、检验规则、标志、包装、运输及贮存。 本文件适用于生产装配式环保L型空心预制件的企业。

Prefabricated environmentally friendly L-shaped hollow prefabricated parts

DB37/T 5256-2023 《民用地下空间装配式建筑评价标准》

本标准适用于山东省地下空间设施的装配化程度评价，具体包含地下停车设施以及平面布局规则且具有实施装配式建造技术可行性的人民防空工程、地下办公及商业等公共服务设施。

Evaluation Standards for Prefabricated Buildings in Civil Underground Spaces

DB37/T 5261-2023 《装配式混凝土楼梯应用技术标准》

本标准适用于山东省行政区划内抗震设防烈度为8度及8度以下环境类别为一类、二a类工业与民用建筑的装配式混凝土楼梯。

Technical Standards for Application of Prefabricated Concrete Stairs

ASTM C1621/C1621M-17(2023) 用J形环测定自固结混凝土通过能力的标准试验方法

Standard Test Method for Passing Ability of Self-Consolidating Concrete by J-Ring

ASTM C1758/C1758M-23 用自固结混凝土制作试样的标准实施规程

Standard Practice for Fabricating Test Specimens with Self-Consolidating Concrete