JPS5621034A - Method for early estimation of concrete strength - Google Patents
Method for early estimation of concrete strengthInfo
- Publication number
- JPS5621034A JPS5621034A JP9608279A JP9608279A JPS5621034A JP S5621034 A JPS5621034 A JP S5621034A JP 9608279 A JP9608279 A JP 9608279A JP 9608279 A JP9608279 A JP 9608279A JP S5621034 A JPS5621034 A JP S5621034A
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- age
- sample
- compressive strength
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
PURPOSE: To prevent the concrete lacking strength from being carried out or in by estimating the strength of unhardened concrete at an age of S (integer ≥1) weeks from which samples are taken, before the concrete has been hardened.
CONSTITUTION: A fixed quantity of concrete sample is taken from unhardened concrete, or a fixed qantity of mortar sample is taken by sifting out and removing coarse aggregate from unhardened concrete. A mixture obtained by mixing the sample and water glass together is formed into a sample, which is used in the compressive strength test to obtain the compressive strength fcn or fmn at an age of n minutes. Then the compressive strength at an age of S weeks is estimated by using a graph or formulas previously prepared through strength tests to show the relationship between the compressive strength fcn or fmn at an age of n minutes and the compressive strength Fs at an age of S weeks of the sample.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9608279A JPS5621034A (en) | 1979-07-30 | 1979-07-30 | Method for early estimation of concrete strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9608279A JPS5621034A (en) | 1979-07-30 | 1979-07-30 | Method for early estimation of concrete strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5621034A true JPS5621034A (en) | 1981-02-27 |
| JPS5718127B2 JPS5718127B2 (en) | 1982-04-15 |
Family
ID=14155465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9608279A Granted JPS5621034A (en) | 1979-07-30 | 1979-07-30 | Method for early estimation of concrete strength |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5621034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352786A (en) * | 2015-11-13 | 2016-02-24 | 西安建筑科技大学 | A preparing and loading method of a broken rock test sample |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60107708A (en) * | 1983-11-17 | 1985-06-13 | Tdk Corp | Magnetic head |
| JPS60107709A (en) * | 1983-11-17 | 1985-06-13 | Tdk Corp | Magnetic head |
| JP6384540B2 (en) * | 2016-12-22 | 2018-09-05 | 積水ハウス株式会社 | Selection method of ground improvement method and ground improvement method |
-
1979
- 1979-07-30 JP JP9608279A patent/JPS5621034A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352786A (en) * | 2015-11-13 | 2016-02-24 | 西安建筑科技大学 | A preparing and loading method of a broken rock test sample |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5718127B2 (en) | 1982-04-15 |
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