轻骨料强度承压筒

轻骨料强度承压筒用于粉煤灰陶粒和陶砂、粘土陶粒和陶砂、页岩陶粒和陶砂、天然轻 骨料等多孔轻骨料的检验。

The lightweight aggregate strength cylinder is used for the inspection of porous lightweight aggregates such as fly ash ceramsite and pottery sand, clay ceramsite and pottery sand, shale ceramsite and pottery sand, and natural light aggregate.

轻骨料强度承压筒结构组成：

由圆柱形筒体(另带筒底)、冲压模和导向筒三部分组成。

外形尺寸：115X100mm

重量：8kg

Lightweight aggregate pressure cylinder structure:

It consists of a cylindrical cylinder (with a bottom), a stamping die and a guiding cylinder.

Dimensions: 115X100mm

Weight: 8kg

轻骨料筒压强度测定仪试验步骤：

■筛取10－20mm粒级(粉煤灰陶粒允许采用10￣15mm的粒径)的试样，其中 10－15mm粒径的体积含量应占50%－70%。

■用承压筒(带筒底)装试样，分别测定3次松散料重，取其算术平均值。对天然轻骨科，取测得的平均松散料重值乘以1.15的填充系数作为试样量；对其他轻骨料，则乘以1.10的填充系数作为试样量。

■按上述试样量称取试样，装入承压筒，先用木锤沿筒壁四周轻敲数次，然后装上导向筒和冲压模，检查冲压模的下刻度线是否与导向筒的上缘重合，如不重合，再轻敲筒壁四周直至完全重合为止。 把承压筒放在压力机的下压板上，以每秒约30￣50kg的速度匀速加荷。当冲压模压 入深度为20mm时，记下压力值。

■轻骨料强度承压筒结果计算

Lightweight cylinder pressure strength tester test steps:

■Sampling 10-20mm grain size (fly ash ceramsite is allowed to use 10 ~ 15mm particle size) of the sample, of which 10-15mm particle size should account for 50% -70%.

■ The specimen was loaded with a pressure cylinder (with a bottom), and the bulk weight was measured three times, and the arithmetic mean was taken. For natural light orthopedics, the average loose material weight value is multiplied by a fill factor of 1.15 as the sample amount; for other light aggregates, the fill factor of 1.10 is multiplied as the sample amount.

■ Weigh the sample according to the above sample volume, put it into the pressure cylinder, first tap it with a wooden hammer along the wall of the cylinder several times, then install the guiding cylinder and the stamping die to check whether the lower scale line of the stamping die and the guiding cylinder The upper edges coincide, if not coincident, then tap the wall around the wall until it is completely coincident. Place the pressure cylinder on the lower pressure plate of the press and load it at a constant speed of about 30 to 50 kg per second. When the stamping die is pressed to a depth of 20 mm, the pressure value is recorded.

■Light aggregate strength bearing cylinder results calculation

轻骨料筒压强度测定仪按下式计算：

式中：Rt──粗骨料的筒压强度(kgf/cm2)，计算精确至lkgf/cm2；

P──压人深度为20mm时的压力值(kgf)：

F──承压成积(即冲压模面积F=100cm2)。

Lightweight cylinder pressure strength tester is calculated as follows:

Where: Rt──the compressive strength of the coarse aggregate (kgf/cm2), calculated to the accuracy of lkgf/cm2;

P—pressure value (kgf) when the depth is 20mm:

F──Pressure pressure accumulation (ie, stamping die area F=100cm2).