一、概述：采用框架和百分表結(jié)構(gòu)，簡單、輕巧、方便試驗中使用，數(shù)據(jù)直觀?；炷翉椥阅Ａ繙y定儀主要用于測量砼試塊的彈性模量。
I. Overview of concrete elastic modulus tester: It adopts the frame and dial indicator structure, which is simple, light and convenient to use in the test, and the data is intuitive. Concrete elastic modulus tester is mainly used to measure the elastic modulus of concrete test blocks.
二、符合標準：
本產(chǎn)品混凝土彈性模量測定儀 TM-Ⅱ 符合GB11971、GB/T50081-2002、G B11971-89〈加氣砼力學性能試驗方法〉、 GB81-85〈普通砼力學性能試驗方法〉、JGJ053-94〈公路工程水泥砼試驗規(guī)程〉、ASTMC-469 標準要求。
Second, the concrete elastic modulus tester meets the standards:
This product's concrete elastic modulus tester TM-Ⅱ complies with GB11971, GB / T50081-2002, G B11971-89
三、技術(shù)參數(shù)：
Third, the technical parameters of concrete elastic modulus tester:
千分表量程0～1mm
上、下環(huán)中距150mm
試件尺寸φ150×300mm
150×150×300mm
100×100×300mm
下環(huán)離底部距離75mm
毛重/凈重5kg
四、Ec按下式計算：
PA-終載荷（N）
PO-初載荷（N）
△a-第五次或A后一次加荷，試件兩側(cè)在PA及PO
作用下變形差平均值（mm)
L-標距（mm)
A-試件斷面積（mm2)
以3根試件實驗結(jié)果的算術(shù)平均值為測定值。若任一抽心抗壓強度平均值之差超過平均值20%，則EC按另兩根試件試驗結(jié)果的算術(shù)平均值計算，若兩根試件結(jié)果超出規(guī)定，試驗無效。結(jié)果 至100Mpa
Fifth, the concrete elastic modulus tester Ec is calculated according to the following formula:
PA-final load (N)
PO-initial load (N)
△ a-Fifth or one load after A, both sides of the test piece are at PA and PO
Deformation average under action (mm)
L-gauge distance (mm)
A-Section area (mm2)
The arithmetic mean of the test results of the three test pieces was used as the measurement value. If the difference between the average values of the compressive strength of any heart beat exceeds the average value by 20%, EC is calculated based on the arithmetic mean of the test results of the other two test pieces. If the results of the two test pieces exceed the requirements, the test is invalid. Results to 100Mpa
五、操作規(guī)程：
★根據(jù)試件尺寸，應先調(diào)整好兩刀口距離。
★在左右主體上裝上，并擰緊止緊螺釘。
★調(diào)整上刀口位置，使上下刀口間距離等于所需標距值。
★松開緊表螺釘，按產(chǎn)品合格證中左、右表編號，分別裝在左右主體上，再調(diào)整表位 置，使下刀口底面與底板上螺釘接觸，A與量表測量平面接觸。
★雙手捏住右連接板和固定板兩端均勻的壓縮彈簧使兩刀口距增大。
★ 測壓縮變型時，儀器在夾持試件后，將定位螺釘下旋離開下刀口底面 1mm，測拉伸 變形時則不需將定位螺釘下旋，仍保持與下刀口底面水平位置接觸。
★為增強上刀口夾緊力，需在上調(diào)整夾緊架，其位置應盡量靠近上刀口處，夾緊 力也可以通過簧帽調(diào)整。
★試件在標距范圍內(nèi)壓縮量取兩表數(shù)值的平均值進行計算。
平均值為測定值。若任一抽心抗壓強度平均值之差超過平均值20%，則EC按另兩根試件試驗結(jié)果的算術(shù)平均值計算，若兩根試件結(jié)果超出規(guī)定，試驗無效。結(jié)果 至100Mpa
Six, the operating procedures of concrete elastic modulus tester:
★ According to the size of the test piece, the distance between the two cutting edges should be adjusted first.
★ Install the post on the left and right bodies and tighten the set screws.
★ Adjust the position of the upper knife edge so that the distance between the upper and lower knife edges is equal to the required gauge value.
★ Loosen the screw on the meter, and install it on the left and right bodies according to the left and right table numbers in the product certificate. Then adjust the position of the meter so that the bottom surface of the lower blade touches the screw on the bottom plate and A contacts the measuring plane of the gauge.
★ Pinch the right connecting plate and the fixing plate with even compression springs at both ends to increase the distance between the two blades.
★ When measuring the compression variant, after holding the test piece, the instrument rotates the set screw down 1mm away from the bottom surface of the lower knife edge. When measuring the tensile deformation, it is not necessary to turn the set screw down and still keep it in horizontal contact with the bottom surface of the lower knife edge.
★ In order to enhance the clamping force of the upper knife edge, the clamping frame needs to be adjusted on the benchmark, and its position should be as close to the upper knife edge as possible, and the clamping force can also be adjusted by the spring cap.
★ The compression amount of the test piece within the gauge range is calculated by averaging the values in the two tables.
The average value is a measured value. If the difference between the average values of the compressive strength of any heart beat exceeds the average value by 20%, EC is calculated based on the arithmetic mean of the test results of the other two test pieces. If the results of the two test pieces exceed the requirements, the test is invalid. Results to 100Mpa
六、結(jié)構(gòu)及操作方法：
★本測定儀由上環(huán)、下環(huán)、接觸桿、千分表和緊定螺釘組成.
7. Structure and operation method of concrete elastic modulus tester:
This analyzer consists of an upper ring, a lower ring, a contact rod, a dial indicator and a set screw.
七、注意事項：
1、試驗時要輕拿輕放，特別在運輸時，避免碰狀，以免影響測試精度。
2、經(jīng)常進行 設(shè)備的保養(yǎng)與維護，并存放在干燥通風之處，待用時間過長儀器設(shè)備，應定期通電開機，防止潮霉損壞儀器設(shè)備其零部件。
Eight, precautions for concrete elastic modulus tester:
1. Handle with care during the test, especially during transportation, avoid bumps, so as not to affect the test accuracy.
2. Frequently carry out equipment maintenance and maintenance, and store it in a dry and ventilated place. The instrument and equipment should be powered on regularly to prevent the moisture and mold from damaging its parts and components.
