SM-1L型砂浆密度测定仪
1、 目的:
测定砂浆拌合物和捣实后质量密度,以确定每立方米砂浆拌合物中组成材料的实际用量。
2、结构参数:
量筒直径------------------------------------------------108mm
净 高------------------------------------------------109mm
筒 壁 厚------------------------------------------------2mm
容 积-------------------------------------------------1L
3、试验步骤:
A、试验前称出容重筒重,**至5g,然后将容量筒的漏斗套上,将砂浆拌合物装满容量筒并略有富余。根据稠度试验方法分别用插捣法或震动法,添加砂浆至装满。
B、将筒口多余砂浆拌合物刮去,是表面平整,然后将容量筒外壁擦净,称出砂浆与容量筒总重,**至5g。
C、砂浆拌合物的质量密度ρ(kg/m3) 按下式计算 :
式中 m1----- 容量筒质量(kg)
m2------容重筒及试样质量(kg)
V------ 容重筒容积(L)
结果以两次试验算术平均值确定,计算**至10kg/m³
注:容量筒容积的校正,可采用一块能覆盖容量筒顶面的玻璃杯,先称出玻璃杯和容量筒。
然后向容量筒中灌入温度20±5℃的饮用水,灌到接近上口时,一边不断加水,一边把玻璃板沿筒口徐徐推入盖严。
应注意是玻璃板下无气泡,然后擦净后连玻璃板称重量。后者与前者之差(以kg计)即为容量筒容积(L)。
SM-1L type mortar density measuring instrument using manual
1, purpose:
The mass density determination of mortar mixture and after tamping, in order to determine the actual amount of materials per cubic meter of mortar mixture.
2, structural parameters:
Cylinder diameter ------------------------------------------------108mm
Net height ------------------------------------------------109mm
Cylinder wall thickness ------------------------------------------------2mm
Product -------------------------------------------------1L
3, test procedure:
A, test before saying bulk weight of tube, accurate to 5 g, then the funnel of the volume cylinder sleeve, the mortar mixture filled with capacity of cylinder and a slight surplus. According to the method of the method of the consistency test, the method of adding the mortar to the full.
B, the cylinder mouth excess mortar mixture scrape, smooth surface, then capacity tube and the outer wall wipe, said that out of the mortar and a capacity cylinder weight, accurate to 5g.
The mass density,
Cmortar mixture (kg/m3) calculated by the formula:
Type m1----- capacity tube mass (kg)
M2------ bulk density cylinder and sample quality (kg)
V------ bulk density cylinder volume (L)
Results in the two test to determine the arithmetic mean value, calculation accuracy to 10kg/m fand
Note: the correction of the capacity of the cylinder volume can be used to cover a glass top of the capacity of the cylinder, first known as the glass and capacity tube.
Then to the volume cylinder filling into the temperature of 20 + 5 DEG C of drinking water, irrigation close to the upper, while continuing to add water, while the glass plate along the cylinder mouth slowly pushed into the cover tightly.
Should be noted that no air bubbles under the glass, and then rub the net after the weight of the glass plate. The latter is associated with the former (kg), which is the capacity of the cylinder volume (L).
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