mso-hansi-font-family:"Times New Roman"">砂石漏斗 砂子漏斗 "Times New Roman"">石子漏斗 细集料漏斗 "Times New Roman"">粗集料漏斗
mso-hansi-font-family:"Times New Roman"">一、砂石漏斗说明:
mso-hansi-font-family:"Times New Roman"">砂石漏斗,T0331—1994 "Times New Roman"">细集料堆积密度及紧装密度试验砂子漏斗。
mso-hansi-font-family:"Times New Roman"">二、砂石漏斗目的与适用范围:
mso-hansi-font-family:"Times New Roman"">砂子漏斗测定砂自然状态下堆积密度、紧装密度及空隙率。
mso-hansi-font-family:"Times New Roman"">三、砂石漏斗仪具与材料
1、台秤:称量5Kg mso-hansi-font-family:"Times New Roman"">,感量5g "Times New Roman"">。
2、容量筒:金属制,圆筒形,内径108mm mso-hansi-font-family:"Times New Roman"">,净高109mm "Times New Roman"">,筒壁厚2mm "Times New Roman"">,筒底厚mm㎜,容积约为1L mso-hansi-font-family:"Times New Roman"">。
3、标准漏斗。
4、烘箱:能控温在105℃±5℃。
5、其它:小勺、直尺、浅盘等。
mso-hansi-font-family:"Times New Roman"">四、砂石漏斗砂子漏斗试验准备:
1、试样制备:用浅盘装来样约5Kg mso-hansi-font-family:"Times New Roman"">,在温度为105℃±5℃ "Times New Roman"">的烘箱中烘干至恒重,取出并冷却至室温,分成大致相等的两份备用。
mso-hansi-font-family:"Times New Roman""> 注:试样烘干后如有结块,应在试验的先予捏碎。
2、容量筒容积的校正方法:以温度为20℃±5℃ mso-hansi-font-family:"Times New Roman"">的洁净水装满容量筒,用玻璃板沿筒口滑移,使其紧贴水面,玻璃板与水面之间不得有空隙。擦干筒外壁水分,然后称量,用式(T0331-1)计算筒的容积V mso-hansi-font-family:"Times New Roman"">。砂子漏斗V=m’2-m’1 (T0331-1)
mso-hansi-font-family:"Times New Roman"">式中:V—— "Times New Roman"">容量筒的容积(mL) "Times New Roman"">;
mso-hansi-font-family:"Times New Roman""> m’1—— "Times New Roman"">容量筒和玻璃板总质量(g) "Times New Roman"">;
mso-hansi-font-family:"Times New Roman""> m’2—— "Times New Roman"">容量筒、玻璃板和水总质量(g) "Times New Roman"">。