SU894569A1 - Method of determining physico-mechanical properties of concrete - Google Patents
Method of determining physico-mechanical properties of concrete Download PDFInfo
- Publication number
- SU894569A1 SU894569A1 SU802865761A SU2865761A SU894569A1 SU 894569 A1 SU894569 A1 SU 894569A1 SU 802865761 A SU802865761 A SU 802865761A SU 2865761 A SU2865761 A SU 2865761A SU 894569 A1 SU894569 A1 SU 894569A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- amplitude
- acoustic emission
- concrete
- properties
- maximum
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
(54) СПОСОБ ОПРЕДЕЛЕНИЯ ФИЗИКО-МЕХАНИЧЕСКИХ СВОЙСТВ ЛЕГКИХ БЕТОНОВ(54) METHOD FOR DETERMINING PHYSICAL AND MECHANICAL PROPERTIES OF LIGHT CONCRETE
Изобретение относитс к неразрушающему контролю качества материалов и изделий и может быть использовано дл контрол качества легких бетонов.The invention relates to non-destructive quality control of materials and products and can be used to control the quality of lightweight concrete.
Известен способ определени прочности бетона, включающий вдавливание щтампа в бетон и определение прочности последнего по тарировочным кривым в зависимости от усили вдавливани щтампа 1.There is a known method for determining the strength of concrete, which involves pressing shtamp into concrete and determining the strength of the latter using calibration curves depending on the force of pressing shtamp 1.
Недостатком данного способа вл етс низка точность, так как измер емые косвенные механические параметры испытани вдавливанием не отражают особенностей структуры легкого бетона, вли ющих на его свойства.The disadvantage of this method is low accuracy, since the measured indirect mechanical parameters of the indentation test do not reflect the structural features of lightweight concrete that affect its properties.
Наиболее близким к предлагаемому вл етс способ определени физико-механических свойств легких бетонов, включающий вдавливание щтампа в бетон и измерение амплитуды сигналов акустической эмиссии 2.The closest to the present invention is a method for determining the physicomechanical properties of lightweight concrete, including pressing the concrete into the concrete and measuring the amplitude of the acoustic emission signals 2.
Указанный способ характеризуетс недостаточной точностью при определении различных физико-механических свойств материала , например прочности и объемной массы, так как дл оценки степени разрущени используетс только величина амплитуды сигнала акустической эмиссии, не отражающа всех особенностей структуры легкого бетона. Кроме того, способ сложен при осуществлении из-за использовани в качестве параметра испытани дл построени тарировочных кривых усили вдавливани , которое определ етс при достижении амплитудой акустической эмиссии заданной величины, а также из-за необходимости ее предварительного экспериментального определени дл конкретного вида и состава легкого бетона.This method is characterized by insufficient accuracy in determining the various physicomechanical properties of the material, such as strength and bulk density, since only the amplitude of the acoustic emission signal is used to estimate the degree of destruction, not reflecting all the features of the structure of lightweight concrete. In addition, the method is difficult to implement due to the use of test pressure as a parameter for constructing the calibration curves, which is determined when the amplitude of acoustic emission reaches a given value, and also because of the need for its preliminary experimental determination for the specific type and composition of lightweight concrete. .
10ten
Цель изобретени - повыщение точности определени .The purpose of the invention is to increase the accuracy of determination.
Поставленна цель достигаетс тем, что согласно способу определени физико-ме15 ханических свойств легких бетонов, включающему вдавливание щтампа в бетон и измерение амплитудь сигналов акустической эмиссии, дополнительно измер ют интегральную амплитудную характеристику акустической эмиссии, а свойства бетонаThis goal is achieved by the fact that, according to the method of determining the physicomechanical properties of lightweight concrete, including pressing the concrete into the concrete and measuring the amplitude of the acoustic emission signals, the integral amplitude characteristic of the acoustic emission is also measured, and the properties of the concrete
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802865761A SU894569A1 (en) | 1980-01-07 | 1980-01-07 | Method of determining physico-mechanical properties of concrete |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802865761A SU894569A1 (en) | 1980-01-07 | 1980-01-07 | Method of determining physico-mechanical properties of concrete |
Publications (1)
Publication Number | Publication Date |
---|---|
SU894569A1 true SU894569A1 (en) | 1981-12-30 |
Family
ID=20870564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802865761A SU894569A1 (en) | 1980-01-07 | 1980-01-07 | Method of determining physico-mechanical properties of concrete |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU894569A1 (en) |
-
1980
- 1980-01-07 SU SU802865761A patent/SU894569A1/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0341969A3 (en) | Ultrasonic densitometer device and method | |
Dackermann et al. | A comparative study of using static and ultrasonic material testing methods to determine the anisotropic material properties of wood | |
GB2037430A (en) | Method of indirect measurement of bolt or screw pre- stressing | |
SU894569A1 (en) | Method of determining physico-mechanical properties of concrete | |
SU1089510A1 (en) | Method of determination of physical mechanical properties o light-weight concrete | |
Bekhta et al. | The study of sound propagation in the wood-based composite materials | |
JPS61254849A (en) | Stress measuring method | |
SU789739A1 (en) | Method of determining lightweight-concrete strength | |
Landis et al. | Acoustic emissions and the fracture energy of wood | |
SU1163251A1 (en) | Method of determining thermal stability of material | |
SU873111A1 (en) | Ultrasonic method for material checking | |
SU1523991A1 (en) | Method of checking quality of articles | |
RU2688877C1 (en) | Method of determining strength characteristics of polymer composite materials | |
SU1516963A1 (en) | Method of calibrating transducers of acoustic emission | |
SU1260842A1 (en) | Method of determining physical and mechanical properties of objects by means of buffer rod converter | |
SU1013842A1 (en) | Cotton fibre ripeness determination method | |
SU1486878A1 (en) | Method of determining material hardness | |
Shah et al. | Correlating tests of progressively damaged concrete with NLU and AE techniques | |
SU836577A1 (en) | Method of evaluating actual sensitivity of ultrasonic inspection of isotropic materials | |
SU1134906A1 (en) | Method and device for determination of percussive adiabats of low-density materials | |
Rescalvo et al. | Relationship between the acoustic emission and the strain field in finger joints of engineered wood products for construction | |
Lindgren | Ultrasonic Characterization of Ceramic Fibers | |
SU1086159A1 (en) | Method of determining strained state of rock body | |
SU1041868A1 (en) | Method of producing acoustic standard | |
Parry | The Hopkinson Bar |