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砂浆竖向膨胀率测定仪

仪器用于灌浆用膨胀砂浆的竖向膨胀率的测定。根据国标GB 50119-2013 《混凝土外加剂应用设计规范》 本规范适用于普通减水剂、高效减水剂、引气剂、引气减水剂、缓凝剂、缓凝减水剂、缓凝高效减水剂、早强剂、早强减水剂、防冻剂、膨胀剂、泵送剂、防水剂及速凝剂等十四种外加剂在混凝土工程中的应用。 

  • 型号: GB50119

  • 产品参数
  • 型号: GB50119


灌浆用膨胀砂浆竖向膨胀率测定仪是**检测仪器,用于灌浆用膨胀砂浆的竖向膨胀率的测定。 使用前务必仔细阅读说明书。并由**实验人员操作,以避免操作不当引起的伤害。如需了解更多资料请与我公司客服人员联系。

Expansion mortar vertical expansion rate measuring instrument for grouting is a testing instrument for measuring the vertical expansion rate of expansive mortar for grouting. Be sure to read the instructions carefully before use. It is operated by ** experimental personnel to avoid injury caused by improper operation. For more information, please contact our customer service staff.

 

灌浆用膨胀砂浆竖向膨胀率测定仪根据国标GB 50119-2013 《混凝土外加剂应用设计规范》 本规范适用于普通减水剂、高效减水剂、引气剂、引气减水剂、缓凝剂、缓凝减水剂、缓凝高效减水剂、早强剂、早强减水剂、防冻剂、膨胀剂、泵送剂、防水剂及速凝剂等十四种外加剂在混凝土工程中的应用。 

Expansion mortar vertical expansion rate tester for grouting According to the national standard GB 50119-2013 "Specifications for the Design and Application of Concrete Admixtures" This specification is applicable to ordinary water reducing agents, high efficiency water reducing agents, air entraining agents, air entraining water reducing agents, retarder Fourteen admixtures, such as retarder, retarder, superplasticizer, early strength agent, early strength water reducer, antifreeze, expansion agent, pumping agent, waterproofing agent and quick setting agent, are used in concrete projects. Application.

 

灌浆用膨胀砂浆竖向膨胀率测定仪技术参数

★ 测试仪器工具应符合下列规定: 

★千分表:量程0-10mm; 精度:0.001mm;

★玻璃板:长140mm×宽80mm×厚5mm; 

★钢制压块:直径:70mm,厚5mm,质量:150g;

★试模:10mm×10mm×10mm立方体试模,拼装缝应填入黄油,不得漏水;

Technical parameters of vertical expansion rate measuring instrument for grouting expansion mortar:

★ Test instruments and tools should meet the following requirements:

★ Dial indicator: range 0-10mm; accuracy: 0.001mm;

★ Glass plate: length 140mm × width 80mm × thickness 5mm;

★ Steel briquettes: diameter: 70mm, thickness 5mm, mass: 150g;

★ Test mold: 10mm × 10mm × 10mm cube test mold, the assembly seam should be filled with butter and must not leak;

 

灌浆用膨胀砂浆竖向膨胀率测定仪的安装

★测量支架的垫板和测量支架横梁应采用螺母紧固,其水平度不应超过0.02;测量支架应水平放置在工作台上,水平度也不应超过0.02;

★试模应放置在钢垫板上,A摇动;

★玻璃板应平放在试模中间位置,其左右两边与试模内侧边留出10mm空隙;

★钢质压块应置于玻璃板中央;

★千分表与测量支架应固定牢靠,但表杆应能自由升降。安装千分表时,应压下表头,宜使表针指到量程的1/2处。

Installation of vertical expansion rate measuring instrument for grouting expansion mortar

★ The backing plate of the measurement bracket and the beam of the measurement bracket should be fastened with nuts, and its level should not exceed 0.02; the measurement bracket should be placed horizontally on the workbench, and the level should not exceed 0.02;

★ The test mold should be placed on the steel backing plate, A shake;

★ The glass plate should be placed flat in the middle of the test mold, leaving a 10mm gap between the left and right sides and the inner side of the test mold;

★ Steel pressure block should be placed in the center of the glass plate;

★ The dial indicator and measurement bracket should be fixed firmly, but the meter rod should be able to lift and lower freely. When installing the dial indicator, press the bottom of the dial, and the pointer should be pointed to 1/2 of the measuring range.

 

灌浆用膨胀砂浆竖向膨胀率测定仪操作步骤:

★灌浆料用水量按流动度为250±10nirn 的用水量。

★灌浆料加水搅拌均匀后应立刻灌模,从玻璃板的一侧灌入。当灌到50mm左右高度时,用捣板在试模的每一侧插捣6 次,中间部位也插捣6 次。灌到90mm高度时,和前面相同再做插捣,尽量排出气体。A后一层灌浆料要一次灌至两侧流出灌浆料为止。要尽量减少灌浆料对玻璃板产生的向上冲浮作用。

★玻璃板两侧灌浆料表面,用小刀轻轻抹成斜坡,斜坡的高边与玻璃相平。斜坡的低边与试模内侧顶面相平。抹斜坡的时间不应超过30s。之后30s内,用两层湿棉布覆盖在玻璃板两侧灌浆料表面。

★把钢质压块置于玻璃板中央,再把千分表测量头垂放在钢质压块上,在30s内记录千分表读数h0,为使读数。

★从测定初始读数起,每隔2h 浇水1 次。连续浇水4 次。以后每隔4h 浇水1 次。保湿养护至要求龄期,测定3d、7d 试件高度读数;

Operation steps of vertical expansion ratio tester for grouting mortar:

★ The water consumption of the grout is based on the water consumption of 250 ± 10nirn.

★ After filling the slurry with water and stirring well, it should be poured into the mold immediately and poured from one side of the glass plate. When pouring to a height of about 50mm, use a tamping board to poke 6 times on each side of the test mold, and poke 6 times in the middle. When pouring to a height of 90mm, do the same as before, and try to exhaust the gas. A layer of grouting material should be poured at one time until the grouting material flows out from both sides. It is necessary to minimize the upward flushing effect of the grout on the glass plate.

★ Fill the surface of the slurry on both sides of the glass plate with a knife and gently wipe it into a slope. The lower edge of the ramp is flush with the top surface on the inside of the test pattern. The time for wiping the slope should not exceed 30s. Within 30s, cover the surface of the grout on both sides of the glass plate with two layers of wet cotton cloth.

★ Put the steel pressure block in the center of the glass plate, and then hang the dial gauge measuring head on the steel pressure block, and record the dial indicator reading h0 within 30s to make the reading.

★ Watering 1 time every 2h from the initial reading of the measurement. Continuous watering 4 times. Watering 1 time every 4h. Moisturize and maintain to the required age, and measure the height readings of 3d and 7d test pieces;




砂浆竖向膨胀率测定仪

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