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當前位置:上海榮計達儀器科技有限公司>>>>HT-1土基回彈模量測定儀廠家 杠桿壓力儀 榮計達

HT-1土基回彈模量測定儀廠家 杠桿壓力儀 榮計達

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土基回彈模量測定儀是檢測儀器

詳細介紹

土基回彈模量測定儀是 檢測儀器。適用于在室內對細顆粒土或粒徑20㎜以下的級配集料試件進行回彈模量測定。試件在一定載荷的作用下產生變形,卸去載荷,變形恢復,但載荷大于試件的彈性變形時產生塑性變形,本儀器采用杠桿法對試件進行加荷,卸荷試驗,以得到試件的 回彈試模和塑限值。

The soil-based rebound modulus tester is a testing instrument. It is suitable for measuring the rebound modulus of fine-grained soil or gradation aggregate samples with a particle size of less than 20㎜ indoors. The test piece is deformed under a certain load, the load is removed, and the deformation is recovered, but the plastic deformation occurs when the load is greater than the elastic deformation of the test piece. This instrument uses the lever method to load and unload the test piece to obtain the test. Resilience test and plastic limit of the part.


土基回彈模量測定儀技術參數:

★承載板面積:

Φ25.2mm-5cm2

Φ37.4mm-11cm2

Φ50.5mm-20cm2

★杠桿比: 10:1

★外形尺寸:450X350450mm

★重量:20kg

Technical parameters of soil-based rebound modulus tester:

★ Bearing board area:

Φ25.2mm-5cm2

Φ37.4mm-11cm2

Φ50.5mm-20cm2

★ Leverage ratio: 10: 1

★ Dimensions: 450X350450mm

★ Weight: 20kg


土基回彈模量測定儀操作規程:

★試料的準備:如試料為粗顆粒的級配集料,則篩取試料中直徑大于20mm的顆粒,如200mm以下的集料的顆粒組成不符合級配要求,則添加所缺粒料,使達到級配要求。

★擊實試驗:按擊實試驗法測定材料的A佳含水率和A大干容量,并繪制含水量.干容重關系圖。

★制試件,對于路基土做3---4組擊實功能不同的試件。

例如:擊實功能分別為5.62Kgcm/C㎡(相當于輕型擊實儀實驗法)12.5Kgcm/Cm,19.5Ggcm/Cm左右的試件,每組6---7各點,利用試件作回彈試模試驗。

★對于路面材料,參照承載比試驗法制作方法制取試件,同一試件作2—4個,其中一半進行泡水測膨脹量,然后一起進行逐級載荷試驗(即測{a}1211{/a})。

Operation rules of soil-based rebound modulus tester:

★ Preparation of sample: if the sample is a coarse-grained aggregate, sieve particles with a diameter greater than 20mm in the sample, if the particle composition of the aggregate below 200mm does not meet the grading requirements, add the missing particles Materials, so as to meet the grading requirements.

★ Compaction test: According to the compaction test method, determine the material A's best moisture content and A's large dry capacity, and draw the relationship between water content and dry bulk density.

★ Make test pieces, and make 3--4 test pieces with different compaction functions for subgrade soil.

For example: the compaction function is 5.62Kgcm / C㎡ (equivalent to the light compactor test method) 12.5Kgcm / Cm, 19.5Ggcm / Cm, about 6-7 points in each group Springback test.

★ For pavement materials, prepare test specimens by referring to the production method of the load-bearing test method. Two or four test specimens are made of the same test specimen, half of which is measured by the soaking in water to measure the expansion, and then the load test is performed step by step (ie {a} 1211 { / a}).


使用說明:

★選定承載板上的單位壓力

1、對于計算含水量大于塑性的 土基層用0.5—10kg/平方厘米

2、對于計算含水量小于塑限的 土基層用1.0-2.0kg/平方厘米

3、對于地基層材料用,5—7Kg/平方厘米

★將帶試筒的式樣倒置在儀器的地板上,安放直徑約為試筒四分之一的承載板:調平杠桿,使砝碼的一端略翹上,并安置百分表

★預壓:先計算的A大荷載對試件1-2次,卸荷預壓試驗,在試驗過程中,進一步調整承載板的位置,承載板與試樣表面的接觸,杠桿的高低,并調整百分表的指針指零,并使百分表預壓1mm。

★測回彈變形:將計算好的預定的單位壓力分為4—6等份,作為每次加荷的數量(A后一次加荷可略大于預定的計算總壓力)

Instructions for soil-based rebound modulus tester:

★ Selected unit pressure on the load plate

1. For soil bases whose calculated water content is greater than plastic, use 0.5-10kg / cm2.

2.For soil bases whose calculated water content is less than the plastic limit, use 1.0-2.0kg / cm2.

3. For foundation materials, 5-7Kg / cm2

★ Invert the style with the test cylinder on the floor of the instrument, and place a load plate with a diameter of about one-fourth of the test cylinder: level the lever, slightly raise one end of the weight, and place the dial indicator.

★ Preload: Calculate A load for 1-2 times on the test piece first, unload preload test, during the test, further adjust the position of the bearing plate, the contact between the bearing plate and the sample surface, the level of the lever, Adjust the pointer of the dial indicator to zero and preload the dial indicator by 1mm.

★ Measure the rebound deformation: divide the calculated predetermined unit pressure into 4-6 equal parts as the number of each load (the load after A can be slightly larger than the total calculated pressure)




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