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Needle sheet gauge

Model: ZP-1

1、Overview of needle and sheet gauge

The percentage of needle like aggregate and flake like aggregate shall be measured with a standard needle like aggregate of more than 4.75 mm. Meet the requirements of jtge42-2005 code for aggregate test of highway engineering. The needle flake particles measured by this method refer to the particles whose ratio of the size in the direction of minimum thickness (or diameter) to that in the direction of maximum length (or width) of coarse aggregate particles measured by a special calibrator is less than a certain proportion; The content of needle and flake particles in coarse aggregate determined by this method can be used to evaluate the shape of aggregate and its applicability in engineering.

2、Main technical parameters of needle and sheet gauge:

1. Pore width of flake particle size: 3,5.2,7.2,9,11.3,14.3mm

2. Flake fraction spacing: 18,31.2,43.2,54,67.8,85.8mm

3. Screen width of flake size of needle flake calibrator: 3,5.2,7.2,9,11.3,14.3mm

4. Needle size screening spacing: 18,31.2,43.2,54,67.8,85.8mm

針片狀規(guī)準(zhǔn)儀

型號(hào)：ZP-1

一、針片狀規(guī)準(zhǔn)儀概述

針片狀規(guī)準(zhǔn)儀用于測(cè)定水泥混凝土使用的4.75㎜以上的粗集料的針狀及片狀顆粒含量，以百分率計(jì)。符合JTGE42-2005《公路工程集料試驗(yàn)規(guī)程》要求。本方法測(cè)定的針片狀顆粒，是指使用專用規(guī)準(zhǔn)儀測(cè)定的粗集料顆粒的最小厚度（或直徑）方向與最大長(zhǎng)度（或?qū)挾龋┓较虻某叽缰刃∮谝欢ū壤念w粒；本方法測(cè)定的粗集料中針片狀顆粒的含量，可用于評(píng)價(jià)集料的形狀及其在工程中的適用性。

二、針片狀規(guī)準(zhǔn)儀主要技術(shù)參數(shù):

1、片狀粒級(jí)分孔寬：3,5.2,7.2,9,11.3,14.3mm

2、片狀粒級(jí)分間距：18,31.2,43.2,54,67.8,85.8mm

3、針片狀規(guī)準(zhǔn)儀片狀粒級(jí)篩寬：3,5.2,7.2,9,11.3,14.3mm

4、針狀粒級(jí)篩分間距：18,31.2,43.2,54,67.8,85.8mm