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\rSYD-0754<\/strong><\/span>乳化沥青粘结力试验仪<\/strong><\/span><\/strong><\/span>\r<\/p>\r \r一、<\/strong><\/span>乳化沥青粘结力试验仪适用范围：<\/strong><\/span>\r<\/p>\r \r 本仪器用于测定乳化沥青稀浆封层混合料达到完全固化所需的时间，用以确定乳化沥青稀浆封层混合料施工后早期开放交通的时间。本仪器符合‘<\/strong><\/span>JYJ052-2000<\/strong><\/span>’标准中‘<\/strong><\/span>TO754-2000<\/strong><\/span>’的试验规范。<\/strong><\/span>\r<\/p>\r \r <\/strong><\/span>\r<\/p>\r \r二、乳化沥青粘结力试验仪<\/strong><\/span>主要特点：<\/strong><\/span>\r<\/p>\r \r 1<\/strong><\/span>。台式结构，携带方便，设计先进，美观大方；<\/strong><\/span>\r<\/p>\r \r 2<\/strong><\/span>。既可以做室内试验，也可以在施工现场使用；<\/strong><\/span>\r<\/p>\r \r 3<\/strong><\/span>。制作精良，使用方便，测试结果准确可靠。<\/strong><\/span>\r<\/p>\r \r <\/strong><\/span>\r<\/p>\r \r三、<\/strong><\/span>乳化沥青粘结力试验仪主要技术参数<\/strong><\/span>:<\/strong><\/span>\r<\/p>\r \r 1.<\/strong><\/span>压头：橡胶垫直径<\/strong><\/span>28.6mm<\/strong><\/span>，厚<\/strong><\/span>6.4mm<\/strong><\/span> <\/strong><\/span>\r<\/p>\r \r 2.<\/strong><\/span>测力板手：扭矩表最大扭矩不小于<\/strong><\/span>350NNaN<\/strong><\/span>，传力杆直径<\/strong><\/span>200px<\/strong><\/span>\r<\/p>\r \r 3.<\/strong><\/span>圆型试模：①Φ<\/strong><\/span>60mm<\/strong><\/span>（内径）×<\/strong><\/span>6mm<\/strong><\/span>（高）②Φ<\/strong><\/span>60mm<\/strong><\/span>（内径）×<\/strong><\/span>10mm<\/strong><\/span>（高）<\/strong><\/span>\r<\/p>\r \r 4.<\/strong><\/span>重量：<\/strong><\/span>20KG<\/strong><\/span>\r<\/p>\r \r 5.<\/strong><\/span>外形尺寸：<\/strong><\/span>400x300x600mm<\/strong><\/span>\r<\/p>\r \r 6.<\/strong><\/span>环境温度：≤<\/strong><\/span>35<\/strong><\/span>℃<\/strong><\/span>\r<\/p>\r \r 7.<\/strong><\/span>相对湿度：≤<\/strong><\/span>85%<\/strong><\/span>\r<\/p>\r \r <\/strong><\/span>\r<\/p>\r \r四、<\/strong><\/span>乳化沥青粘结力试验仪试验方法：<\/strong><\/span>\r<\/p>\r \r 准备工作：<\/strong><\/span>\r<\/p>\r \r 按要求的级配准备粗、细集料及填料，烘干。<\/strong><\/span>\r<\/p>\r \r 称混合料总重<\/strong><\/span>500g<\/strong><\/span>放入拌锅，然后加入适量的睡拌匀，在加入定量的乳化沥青拌合<\/strong><\/span>1-3<\/strong><\/span>分钟。<\/strong><\/span>\r<\/p>\r \r 将环形试模放置油毛毡上，将达到要求配比的稀浆混合料拌匀后立即导入试模钟并刮平。对细或中稀浆封层料选用<\/strong><\/span>6mm<\/strong><\/span>高试模，对粗封层料选用<\/strong><\/span>10mm<\/strong><\/span>高试模。<\/strong><\/span>\r<\/p>\r \r启动秒表，开始计时，等式样达到初凝后，将试件脱模，重新启动秒表。<\/strong><\/span>\r<\/p>\r \r <\/strong><\/span>\r<\/p>\r \r试验步骤：<\/strong><\/span>\r<\/p>\r \r 将初凝后的试件置于粘结力试验仪的气动橡胶垫下面，放置<\/strong><\/span>15<\/strong><\/span>分钟。<\/strong><\/span>\r<\/p>\r \r 将气动橡胶垫底座压在试件上面，用自行车气筒或空气压缩机向仪器加压。<\/strong><\/span>\r<\/p>\r \r 当仪器压力表达到<\/strong><\/span>0.72Mpa<\/strong><\/span>时，保持此压力，此时橡胶底座对试件的压力为<\/strong><\/span>193Kpa<\/strong><\/span>。<\/strong><\/span>\r<\/p>\r \r 达到压力并保持不变后，将测扭矩扳手测力表归零并套住气缸上端，在<\/strong><\/span>0.7-1<\/strong><\/span>秒内平稳、水平地扭转<\/strong><\/span>90-120<\/strong><\/span>度，并读取扭矩仪读数。<\/strong><\/span>\r<\/p>\r \r 升起橡胶底座，并擦干净底部待下次测试。<\/strong><\/span>\r<\/p>\r \r 此后每隔<\/strong><\/span>15<\/strong><\/span>分钟重复上述步骤。<\/strong><\/span>\r<\/p>\r \r 当固化时间较长时，间隔时间可延长到<\/strong><\/span>30<\/strong><\/span>分钟重复试验一次。<\/strong><\/span>\r<\/p>\r \r 重复试验直至达到最大扭矩，且此扭矩为定值时为止。<\/strong><\/span>\r<\/p>\r \r 记录达到最大扭矩时的时间即固化时间，固化时间加上初凝时间就是稀浆混合料的‘早期开放交通时间’<\/strong><\/span>\r<\/p>\r \r <\/strong><\/span>\r<\/p>\r \r五、<\/strong><\/span>乳化沥青粘结力试验仪试验报告：<\/strong><\/span>\r<\/p>\r \r 报告应记述下列事项：<\/strong><\/span>\r<\/p>\r \r 配制乳化沥青的乳化剂及沥青的品种，乳化剂用量，沥青含量。<\/strong><\/span>\r<\/p>\r \r 矿料种类及级配。<\/strong><\/span>\r<\/p>\r \r