CN105044313A - Measurement apparatus and measurement method of alkali activity of concrete - Google Patents
Measurement apparatus and measurement method of alkali activity of concrete Download PDFInfo
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- CN105044313A CN105044313A CN201510157539.2A CN201510157539A CN105044313A CN 105044313 A CN105044313 A CN 105044313A CN 201510157539 A CN201510157539 A CN 201510157539A CN 105044313 A CN105044313 A CN 105044313A
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- slide damper
- scale
- cambered plate
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Abstract
The invention discloses a measurement apparatus and a measurement method of alkali activity of concrete, wherein the apparatus includes a bottom board (1). Two parallel scale rules (2) and a group of cylinders having scales (5), which are vertical to the top surface of the bottom board, are formed on the top surface of the bottom board. A sliding baffle plate (3) is arranged between the two parallel scale rules and is slidingly connected to the scale rules through fixation by bolts. The cylinders having scales are provided with a bow-shaped board (6). A sleeve (9) is arranged on the bottom of the bow-shaped board and is provided with a jackscrew. The sleeve is slidingly connected to the cylinders having scales. A probe (8) and a dial indicator (7) are disposed respectively at the two ends of the bow-shaped board. The measurement method comprises steps of adjusting horizontal position through the sliding baffle plate and adjusting the height position through the bow-shaped board to achieve measurement of concrete test samples in different size specifications. The apparatus is free of limit of the size of the test samples, wherein measurement accuracy can be ensured by enabling the probe and the dial indicator to be positioned at the central positions of the two ends of the concrete test sample by means of adjustment of the positions of the sliding baffle plate and the bow-shaped board.
Description
Technical field
the present invention relates to a kind of measurement mechanism and method of concrete alkali activity, belong to expansion capacity of concrete field of measuring technique.
Background technology
at present, the method for building trade measurement concrete alkali activity mainly contains two kinds: one is mortar bars Fast Measurement Method, and another kind is prism mensuration.Mortar bars Fast Measurement Method sample dimensions used is 24.5 × 24.5 × 285mm; Prism mensuration sample dimensions used is 75 × 75 × 275mm.Used test instrument is respectively comparator and horizontal metroscope.Due to the restriction of tested person Instrument Design, two kinds of mensurations can not exchange use.In addition, when making test specimen, owing to limiting by condition, being difficult to make the test specimen that size reaches design standards completely, thus causing the problem that error of measured data is larger.
Summary of the invention
the object of the invention is to, a kind of measurement mechanism and method of concrete alkali activity is provided, to improve the measuring accuracy of concrete alkali activity, thus overcomes the deficiencies in the prior art.
technical scheme of the present invention:
a kind of concrete alkali activity measurement device, comprises base plate, and plate top surface is provided with two parallel rules and one group of cylinder with a scale perpendicular to plate top surface; Article two, be provided with slide damper between parallel rule, slide damper and rule are slidably connected, and fix through bolt; One group of cylinder with a scale is provided with cambered plate, and be provided with sleeve bottom cambered plate, sleeve is provided with jackscrew; Sleeve is connected with cylindrical slid with a scale; Cambered plate two ends are respectively equipped with probe and clock gauge.
in aforementioned means, described probe and clock gauge are coaxial, and parallel with base plate.
adopt aforementioned means to measure the method for concrete alkali activity, the method adjusts horizontal level by slide damper, adjusts height and position by cambered plate, to realize the measurement of the concrete sample of different size specification.
in preceding method, according to concrete sample size, slide damper should be slided into the corresponding scale of rule, and with bolt, slide damper is fixed before measurement; Again cambered plate is enclosed within and one group of cylinder with a scale moves to corresponding scale jackscrew fixes; Then the distance between clock gauge measuring staff end and probe end is demarcated with mark post; During measurement, concrete sample is placed between two rules, and concrete sample side and slide damper are pushed against measures.
in preceding method, according to the specification size of test specimen during measurement, adapted to the dimensional requirement of different concrete sample by the graduation position adjusting slide damper and cambered plate.
in preceding method, often kind of specification concrete sample need carry out the measurement of different larval instar, and namely each group concrete sample needs to carry out measuring-the repetitive measurement such as maintenance-measurement-maintenance; Measure the graduation position of slide damper and cambered plate when can measure with reference to the last time next time, obtain precision test reading, twice reading subtracts each other, and namely draws accurate concrete sample swell increment.
compared with prior art, because slide damper of the present invention and cambered plate all can move up and down, therefore device of the present invention is not by the restriction of test specimen size, and clock gauge and probe can be made to be positioned at the center at concrete sample two ends by the position of adjustment slide damper and cambered plate.Again because the rule at slide damper two ends and cambered plate make basic active test when each group concrete sample is measured each time to guarantee slide damper and the cambered plate identical graduation position all when last time measures with a scale; make measurement result more accurate; front and back are measured structure for twice and are subtracted each other, and can draw accurate test test specimen swell increment.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention;
fig. 2 is the schematic perspective view of Fig. 1.
being labeled as in accompanying drawing: 1-base plate, 2-rule, 3-slide damper, 4-bolt, 5-cylinder with a scale, 6-cambered plate, 7-clock gauge, 8-pops one's head in, 9-sleeve, 10-jackscrew.
Embodiment
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
a kind of concrete alkali activity measurement device, as depicted in figs. 1 and 2.Comprise base plate 1, base plate 1 end face is provided with two parallel rules 2 and one group of cylinder with a scale 5 perpendicular to plate top surface; Article two, be provided with slide damper 3 between parallel rule 2, slide damper 3 and rule 2 are slidably connected, and fix through bolt 4; One group of cylinder 5 with a scale is provided with cambered plate 6, and be provided with sleeve 9 bottom cambered plate 6, sleeve 9 is provided with jackscrew 10; Sleeve 9 and cylinder 5 with a scale are slidably connected; Cambered plate 6 two ends are respectively equipped with probe 8 and clock gauge 7.Probe 8 and clock gauge 7 coaxial, and parallel with base plate 1.
adopt aforementioned means to measure the method for concrete alkali activity, the method adjusts horizontal level by slide damper, adjusts height and position by cambered plate, to realize the measurement of the concrete sample of different size specification.According to concrete sample size, slide damper should be slided into the corresponding scale of rule, and with bolt, slide damper is fixed before measurement; Again cambered plate is enclosed within and one group of cylinder with a scale moves to corresponding scale jackscrew fixes; Then the distance between clock gauge measuring staff end and probe end is demarcated with mark post; During measurement, concrete sample is placed between two rules, and concrete sample side and slide damper are pushed against measures.According to the specification size of test specimen during measurement, adapted to the dimensional requirement of different concrete sample by the graduation position adjusting slide damper and cambered plate.Often kind of specification concrete sample need carry out the measurement of different larval instar, and namely each group concrete sample needs to carry out measuring-the repetitive measurement such as maintenance-measurement-maintenance; Measure the graduation position of slide damper and cambered plate when can measure with reference to the last time next time, obtain precision test reading, twice reading subtracts each other, and namely draws accurate concrete sample swell increment.
Embodiment
the device of the present embodiment as depicted in figs. 1 and 2.The present invention includes the base plate 1 for supporting measurement mechanism used unit, the base plate 1 end face spacing be provided with between two parallel rule 2, two rules 2 is greater than the full-size of concrete sample, and this example is 285mm.Article two, be provided with slide damper 3 between parallel rule 2, slide damper 3 and rule 2 are slidably connected, and fix through bolt 4; Base plate 1 end face is also provided with three for supporting the cylinder with a scale 5 of cambered plate 6; Cylinder 5 with a scale is perpendicular to base plate 1 end face.According to the shape of cambered plate 6, this example adopts three cylinders 5 with a scale, and to guarantee the stability of cambered plate 6, be provided with sleeve 9 bottom cambered plate 6, sleeve 9 is provided with jackscrew 10; Three cylinders 5 with a scale are each passed through sleeve 9, and cambered plate 6 is slided on scale cylinder 5 by sleeve 9, the adjustable height with cambered plate 6, fixing by jackscrew 10 after highly determining.One end, cambered plate 6 two ends is provided with probe 8, and the other end is provided with clock gauge 7.Probe 8 and clock gauge 7 coaxial, and parallel with base plate 1.
adopt device of the present invention can measure the concrete sample of different size.The concrete sample dimensions used due to existing mortar bars Fast Measurement Method and prism mensuration is different, so the mode that the present invention adopts slide damper 3 to slide on rule 2 adjusts, is fixed by slide damper 3 after adjust structure by bolt.Probe 8 in this example and clock gauge 7 are arranged on cambered plate 6 two ends, and cambered plate 6 can slide up and down to regulate height on three cylinders 5 with a scale, and is fixed by jackscrew.First demarcate the distance of clock gauge 7 and probe 8 with mark post during measurement.Be placed on by test specimen in the middle of two rules, test specimen side nestles up slide damper 3 and measures again.In measuring process, can according to the specification size of test specimen, the graduation position of adjustment slide damper 3 and cambered plate 6, and because rule 2 and cylinder with a scale 5 all have scale, the test specimen of each specification is measured at every turn, basic active tests each group test specimen will carry out the measurement of different larval instar, and namely each group test specimen will carry out measuring-the repetitive measurement such as maintenance-measurement-maintenance.The graduation position at slide damper and cambered plate place when all can measure with reference to the last time, can draw precision test reading, and twice reading subtracts each other, and can draw accurate test test specimen swell increment.
Claims (6)
1. a concrete alkali activity measurement device, comprises base plate (1), it is characterized in that: be provided with two parallel rules (2) and one group of cylinder with a scale (5) perpendicular to plate top surface at base plate (1) end face; Article two, be provided with slide damper (3) between parallel rule (2), slide damper (3) and rule (2) are slidably connected, and fix through bolt (4); One group of cylinder with a scale (5) is provided with cambered plate (6), and cambered plate (6) bottom is provided with sleeve (9), and sleeve (9) is provided with jackscrew (10); Sleeve (9) and cylinder with a scale (5) are slidably connected; Cambered plate (6) two ends are respectively equipped with probe (8) and clock gauge (7).
2. concrete alkali activity measurement device according to claim 1, is characterized in that: described probe (8) and clock gauge (7) coaxial, and parallel with base plate (1).
3. one kind adopts the method for measurement device concrete alkali activity described in the arbitrary claim of claim 1 ~ 2, it is characterized in that: the method adjusts horizontal level by slide damper, height and position is adjusted, to realize the measurement of the concrete sample of different size specification by cambered plate.
4. measure the method for concrete alkali activity according to claim 3, it is characterized in that: according to concrete sample size, slide damper should be slided into the corresponding scale of rule, and with bolt, slide damper is fixed before measurement; Again cambered plate is enclosed within and one group of cylinder with a scale moves to corresponding scale jackscrew fixes; Then the distance between clock gauge measuring staff end and probe end is demarcated with mark post; During measurement, concrete sample is placed between two rules, and concrete sample side and slide damper are pushed against measures.
5. measure the method for concrete alkali activity according to claim 4, it is characterized in that: according to the specification size of test specimen during measurement, adapted to the dimensional requirement of different concrete sample by the graduation position adjusting slide damper and cambered plate.
6. measure the method for concrete alkali activity according to claim 5, it is characterized in that: often kind of specification concrete sample need carry out the measurement of different larval instar, namely each group concrete sample needs to carry out to measure-the repetitive measurement such as maintenance-measurement-maintenance; Measure the graduation position of slide damper and cambered plate when can measure with reference to the last time next time, obtain precision test reading, twice reading subtracts each other, and namely draws accurate concrete sample swell increment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157539.2A CN105044313B (en) | 2015-04-03 | 2015-04-03 | Measurement apparatus and measurement method of alkali activity of concrete |
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|---|---|---|---|
| CN201510157539.2A CN105044313B (en) | 2015-04-03 | 2015-04-03 | Measurement apparatus and measurement method of alkali activity of concrete |
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| CN105044313A true CN105044313A (en) | 2015-11-11 |
| CN105044313B CN105044313B (en) | 2017-02-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526147A (en) * | 2016-11-30 | 2017-03-22 | 东南大学 | Device and method for measuring expansion performance of mortar or concrete under vertical semi-submerged condition |
| CN109443127A (en) * | 2018-11-26 | 2019-03-08 | 东莞捷荣技术股份有限公司 | A kind of mobile phone shell side incline position detection device and detection method |
| CN113218803A (en) * | 2021-03-18 | 2021-08-06 | 广东巴德富新材料有限公司 | Experimental device and experimental method for resisting salt-overtaking alkalinity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526147A (en) * | 2016-11-30 | 2017-03-22 | 东南大学 | Device and method for measuring expansion performance of mortar or concrete under vertical semi-submerged condition |
| CN106526147B (en) * | 2016-11-30 | 2019-06-25 | 东南大学 | A kind of device and method that the expansion character measuring mortar or concrete under the conditions of vertical half soaks measures |
| CN109443127A (en) * | 2018-11-26 | 2019-03-08 | 东莞捷荣技术股份有限公司 | A kind of mobile phone shell side incline position detection device and detection method |
| CN113218803A (en) * | 2021-03-18 | 2021-08-06 | 广东巴德富新材料有限公司 | Experimental device and experimental method for resisting salt-overtaking alkalinity |
| CN113218803B (en) * | 2021-03-18 | 2024-04-02 | 广东巴德富新材料有限公司 | Experimental device and experimental method for salt-tolerant alkalinity resistance |
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| CN105044313B (en) | 2017-02-22 |
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