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吉黑高速公路北安至黑河段工程建设项目
试验仪器自检自校规程
北黑高速公路建设指挥部中心试验室 制
2010年4月28日
目 录
············································································· 1 一 环刀校验方法
········································································· 3 二 比重瓶校验方法·
························································· 6 三 液塑限联合测定仪校验方法 ·
·································································· 8 四 相对密度仪校验方法 ·
········································································· 10 五 击实仪校验方法·
························································· 12 六 灌砂法容重测定仪校验方法 ·
···························································· 15 七 称量盒（铝盒）校验方法 ·
·································································· 17 八 电热干燥箱校验方法 ·
······························································· 19 九 针片状规准仪校验方法 ·
···························································· 22 十 压碎指标测定仪校验方法 ·
························································ 24 十一 石料压碎值测定仪校验方法 ·
··························································· 26 十二 水泥净浆搅拌机校验方法 ·
············································ 29 十三 水泥稠度与凝结时间测定仪校验方法 ·
························································· 32 十四 水泥胶砂搅拌机校验方法 ·
···························································· 35 十五 水泥抗压夹具校验方法 ·
····································································· 37 十六 雷氏夹校验方法 ·
······························································· 41 十七 水泥标准筛校验方法 ·
················································ 43 十八 胶砂试验体成型振实台校验方法 ·
······························································· 46 十九 水泥沸煮箱校验方法 ·
················································ 48 二十 水泥胶砂流动度测定仪校验方法 ·
······················································ 50 二十一 水泥标准养护箱校验方法 ·
······························································· 52 二十二 水泥试模校验方法 ·
················································ 54 二十三 混凝土、砂浆搅拌机校验方法 ·
············································· 56 二十四 混凝土坍落度筒及捣捧校验方法 ·
················································ 58 二十五 混凝土及砂浆试模验校验方法 ·
··················································· 60 二十六 气压式含量测定仪校验方法 ·
···························································· 64 二十七 集料试验筛校验方法 ·
·································································· 71 二十八 密度筒校验方法 ·
·································································· 73 二十九 容量瓶校验方法 ·
·································································· 76 三十 取芯机校验方法 ·
·································································· 78 三十一 脱模器校验方法 ·
···························································· 80 三十二 马歇尔试模校验方法 ·
·································································· 82 三十三 抽提仪校验方法 ·
一 环刀校验方法
本方法适用于直径为58mm、62mm、64mm、70mm、79.8mm五种规格环刀的校验。
（一）概述
环刀是按GB/T50123-1999、SL237-1999、JTJ051-93进行粘土密度测定的专用器具。
（二）技术要求
2.1 外观检查无缺口、卷刃和明显变形。
2.2 剪切试样用环刀直径为64.0±0.4mm，高20±0.4mm。 2.3 压缩试样用环刀直径为79.8±0.5mm，高20±0.4mm。 2.4 膨胀试样用环刀直径为58.0±0.4mm，高25±0.4mm。 2.5 渗透试样用环刀直径为62.0±0.4mm，高40±0.4mm。 2.6 含水率、密度测定用环刀直径为70.0±0.4mm，高52±0.4mm。 （三）校验用标准器具
3.1 游标卡尺：最大量程150mm，分度值为0.02mm； 3.2 电子天平：称量200g，感量0.01g。 （四）环境条件
温度：20℃~24℃；相对湿度：≤75℅。 （五）校验方法
5.1 将环刀洗净、烘干、冷却后称其质量，准确至0.01g。
5.2 环刀直径用游标卡尺在环刀平面两个垂直方向上测量，取算术平均值。
5.3 环刀高度用游标卡尺在环刀平面每隔120°方向上测量高度一次，共测三次，取算术平均值。
（六）校验结果处理
校验结果符合技术要求为合格，合格者方可使用。 （七）校验周期 一年。
（八）附录
校验记录表格式。
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