SU578620A1 - Method of determining self-straining energy of solidifying binder - Google Patents
Method of determining self-straining energy of solidifying binderInfo
- Publication number
- SU578620A1 SU578620A1 SU7602337795A SU2337795A SU578620A1 SU 578620 A1 SU578620 A1 SU 578620A1 SU 7602337795 A SU7602337795 A SU 7602337795A SU 2337795 A SU2337795 A SU 2337795A SU 578620 A1 SU578620 A1 SU 578620A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- energy
- self
- straining
- samples
- determining self
- Prior art date
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
ж- средн прочность образцов на сжатие , кгс/см ; / - эмпирический коэффициеит.Ж- average compressive strength of samples, kgf / cm; / - empirical coefficient.
Способ осуществл ют следующим образом.The method is carried out as follows.
Пробы материала, энергию самонапр жени которого определ ют, формуют без упругих ограничителей деформаций в обычных формах, например в виде призм. После набора требуемой начальной прочности формы разбирают и образцы в дальнейшем хран т в услови х свободного расширени .Samples of the material, whose self-stress energy is determined, are molded without elastic strain relief in conventional forms, for example, in the form of prisms. After the required initial strength has been obtained, the forms are disassembled and the samples are subsequently stored under conditions of free expansion.
В результате выполненных экспериментов установлено, что величину энергии самонапр жеии определ ют две характеристики образцов свободного расширепи ; s - относительна линейна деформаци , R -средн прочность, при которой происходит расширение образцов.As a result of the experiments performed, it was established that the value of the self-adhesion energy determines two characteristics of free-expansion samples; s is the relative linear deformation, R is the average strength at which the specimens expand.
Из двух образцов с одинаковой величиной линейного расширени тот характеризуетс большей энергией самонапр жени , у которого прочность во врем расширени была выше.Of the two samples with the same magnitude of linear expansion, the one is characterized by a higher self-stressing energy, whose strength during expansion was higher.
Таким образом, замерив линейную деформацию образца свободного расширени и определив среднюю прочность за период расширени (самонапр жени ), получают характеристику энергии самонапр жени .Thus, by measuring the linear deformation of the sample free expansion and determining the average strength over the expansion period (self-stress), one obtains the characteristic of the self-stress energy.
Предлагаемый способ проверен в практике экспериментальных исследований и обеспечивает простоту и точность испытаний.The proposed method is tested in the practice of experimental research and provides the simplicity and accuracy of testing.
Форм}л а изобретени Form} l and inventions
Способ определени энергии самонапр жени твердеющего в жущего путем изготовлени образцов материала в форме и измерени их деформаций в процессе твердени , отличающийс тем, что, с целью упрощени измерени и повышени точности, образцы материала после набора начальной прочности освобождают от формы и периодически в услови х свободного расширени образцов до завершени процесса деформации замер ют их прочность на сжатие, а энергию самонапр жени определ ют по формулеThe method of determining the energy of self-stressing a hardening material by making samples of a material in a mold and measuring their deformations during the hardening process, is characterized in that, in order to simplify measurement and improve accuracy, material samples after a set of initial strength are freed from the shape and periodically expansion of the specimens before the deformation process is completed, their compressive strength is measured, and the self-stress energy is determined by the formula
el/2.el / 2.
К TO
материагде а - величина самонапр жени ла, кгс/см ;matemagda a is the value of self-pressure, kgf / cm;
8 - относительна линейна деформаци 8 - relative linear deformation
образцов, %;samples,%;
„ „
средн прочность образцов на сжaverage strength of compressed samples
сжатие, кгс/см ; К. - эмпирический коэффициент.compression, kgf / cm; K. - empirical coefficient.
Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination
1.Александровский С. В. и др. Предварительно напр женный и самонапр женный железобетон в США, М., «Стройиздат, 1974.1. Aleksandrovsky SV, et al. Pre-stressed and self-stressed reinforced concrete in the USA, M., Stroyizdat, 1974.
2.Авторское свидетельство N° 338851, кл. G 01N 33/38, 1969.2. Author's certificate N ° 338851, cl. G 01N 33/38, 1969.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602337795A SU578620A1 (en) | 1976-03-24 | 1976-03-24 | Method of determining self-straining energy of solidifying binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU7602337795A SU578620A1 (en) | 1976-03-24 | 1976-03-24 | Method of determining self-straining energy of solidifying binder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU578620A1 true SU578620A1 (en) | 1977-10-30 |
Family
ID=20653422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU7602337795A SU578620A1 (en) | 1976-03-24 | 1976-03-24 | Method of determining self-straining energy of solidifying binder |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU578620A1 (en) |
-
1976
- 1976-03-24 SU SU7602337795A patent/SU578620A1/en active
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