5—evaluation of compressive strength test results

... the number of strength test results in the record, X is the mean, or average, strength test result, and ΣX is the sum of the strength test results. When considering two separate records of concrete ... for a wide range of compressive strengths The coefficient of variation is typically used when comparing the dispersion of strength test results of records with average compressive strengths more ... function of the number of test results The within-test standard deviation is estimated from the average range R of at least 10, and preferably more, strength test results of a concrete mixture, tested...

Ngày tải lên: 24/10/2014, 15:46

... Analysis of clay mineralogy of all these sites might be more helpful in explaining the release and fixation of K upon drying than the determina-tion of clay content of soil per se Ratio of (Ca ... Change in soil test K level calculated as spring minus fall sampling soil K test results ‡ Standard deviation of soil K change between four replications of a control plot (n = 4) * Soil test categories ... (LSD) at 90% confidence level 3 Results and Discussion 3.1 Basic Soil Properties Initial soil test results of all experimental sites are presented in Table 3 The pH of soils ranged from moderately...

Ngày tải lên: 13/01/2020, 15:34

... quality of evaluation works of research results Then the study proposes a new system of indicators for acceptance evaluation of research results in field of social sciences for University of Sciences, ... improvement of the system of indicators for acceptance evaluation of research results in field of social sciences which would be consistent and suitable to specific particularities of University of Sciences, ... examination, in term of quality and quantity, of research results gained through activities of scientific research on basis of indicators of norms to define the values of the scientific Trang...

Ngày tải lên: 02/02/2020, 14:07

... 0.756 m of water at no load and 0.882 m of water at maximum load of 7.0 kg whereas it was observed to be maximum of 1.386 m of water at loads of 3.0 kg and 4.0 kg at constant head of 7.68 m of water ... applied load of 3.0 kg during the operation of the turbine at a constant head of 9.09 m of water The pressure drop of 0.756 m and 1.197 m of water at no load and at maximum load of 5.0 kg, respectively ... depicted whereas it was maximum of 1.386 m of water at load of 4.0 kg at constant head of 9.09 m of water Similar trend of water flow rate through the pipe line of the turbine, pressure drop across...

Ngày tải lên: 21/09/2020, 12:29

... the results of vane tests in peat Despite all the issues identified with vane tests in peat, it continues to be the most common used test to determine the shear strength of peat 3.2 Laboratory testing ... to the use of undrained strengths from simple shear tests (Den Haan and Feddema, 2012) This paper describes the results of a study carried out to examine the undrained shear strength of peat using ... determining the shear strength of peat in practice Given the wide range of causal factors, assessments of the stability of peat adjacent to engineering works often involve a combination of qualitative...

Ngày tải lên: 02/11/2022, 09:27

... the value of compressive strength is defined in terms of the test method 15 Keywords 15.1 compressive strength; hydraulic cement mortar; hy-draulic cement strength; mortar strength; strength 6 ... test method provides a means of determining the compressive strength of hydraulic cement and other mortars and results may be used to determine compliance with speci-fications Further, this test ... attached at the center of the upper head of the machine The center of the sphere shall coincide with the surface of the bearing face within a tolerance of 65 % of the radius of the sphere Unless...

Ngày tải lên: 26/03/2014, 21:55

... docu-menting its review of the Demo I test results and the impact of those results on the conclusions of the initial report (NRC, 1999) The committee completed its task at the end of March 2000 and ... opera-tion The results of coupon tests updated by AEA (Table 2-2)demonstrate that serious issues remain concerning the selec-tion of materials of construction In these tests, coupons ofdifferent ... achievements of engineers Dr Wm A Wulf is president of the National Academy of Engineering The Institute of Medicine was established in 1970 by the National Academy of Sciences to secure the services of...

Ngày tải lên: 28/03/2014, 11:20

... re-view of the demonstration test results and the impact of those results on its initial report STATEMENT OF TASK The Statement of Task for this report is as follows: At the request of the DOD’s ... thecommittee’s conclusions on the basis of its review of thedocuments listed in the Statement of Task Chapter 5 pro-vides a discussion of the impact of demonstration test results pre-on the original general ... previous tests at the technol-ogy provider’s laboratory and the results of the demonstra-tion tests are combined, the aggregate results are inconclusive The reason for the poor demonstration results...

Ngày tải lên: 28/03/2014, 11:20

... variation of 0.025 mm The diameter of the spherical seat shall be at least as large as that of the test specimen, but shall not exceed twice the diameter of the test specimen The center of the sphere ... explaining that the results reported may differ from results obtained from a test specimen that meets the requirements of Practice D4543 8.3 Moisture condition of the specimen at the time of test can have ... diameter of approximately 47 mm satisfy this criterion in the majority of cases When cores of diameter smaller than the specified minimum must be tested because of the unavailability of larger...

Ngày tải lên: 03/10/2023, 08:38

... recapitalisation and restructuring process Results of the Independent Evaluation of the Spanish Banking Sector 1 Introduction Today the results of the stress tests conducted on Spanish banks are being ... involving the assumption of losses by the holders of hybrid and subordinated instruments, within the framework of Royal Decree-Law 24/2012 3.2 Details On the basis of the stress test results presented ... at the level of each transaction • The proper classification of the portfolio on the basis of the status of the borrower, the value of the collateral and the sector Verification of the credit...

Ngày tải lên: 29/03/2014, 08:20

... in water at a temperature of 20◦C in the roomcondition prior to test days The compressive strength tests were conducted after 2, 7 and 28 days of curing Compressive tests were carried out according ... taken from 4 to 70◦. 3 Results and discussion 3.1 Strength analysis of C0-SCC specimens Table 5 shows the compressive strengths of C0-SCC specimens after 2, 7 and 28 days of curingwhich are all ... size of 15 nm were added to self-compacting concrete and various properties of the mens were measured The results indicate that CuO nanoparticles are able to improvethe compressive strength of...

Ngày tải lên: 06/05/2014, 08:55

... translation of the questionnaire is adequate, given the completeness of responses and its internal consis-tency The results of tests of scaling assumptions sup-port the hypothesised scale structure of ... including mea-sures of well-being and self-evaluation of health status [4-6] The items in the questionnaire were selected from the set of 149 items of the Functioning and Well-Being Profile, which covered ... consistency of responses to the 15 pairs of questions was evaluated, as suggested by the authors of the SF-36 (v.2) [17] The discriminant validity of items was calculated to assess the integrity of scale...

Ngày tải lên: 20/06/2014, 15:20

... same order of magnitude at each run There-fore, for each set of tests we present a single measurement that is representative for the general behavior of the test bed The purpose of our tests was ... second set of tests, we turned on all the remain-ing nodes of the test bed and restarted the 3600 packets RTT measurement between the same nodes, still using MeshDV-CL Results of this second test are ... this test In the first set of tests, we turned off all nodes except those of T1 and we used MeshDV-CL as routing protocol pack-ets (around one-hour measurement).Figure 6(a)shows the RTT of all...

Ngày tải lên: 22/06/2014, 22:20

... evaluation of an immobilization system for suppression of respiratory tumor movement and preliminary results Address: 1 Department of Radiology, Nagoya City University Graduate School of Medical ... Table 3: Reduction of tumor movement p*: Paired t-test for mean values of tumor movement. X – Y†: Amplitude of tumor movement in condition X minus that in condition Y. Amplitude of tumor movement ... change of SpO2 levels under conditions C and D, repeated measure analysis of variance was used Survival rates and cumulative incidences of complications were calculated by the Kaplan-Meier method Results...

Ngày tải lên: 09/08/2014, 09:22

... nonverbally The Schlichting Test assesses language expression of Dutch-speaking children between ages 1 and 6 years [31] Two sub-tests were applied: one testing knowledge of grammatical structure ... other subtest measuring active vocabulary (lexical development) The numbers of correct answers in the tests were transformed into standard quotient scores with a mean of 100 and a SD of 15 The ... Twelve of them regularly used a combination of β-sympathicomimetic drugs and inhalation steroids None of the children needed supplemental oxygen Two of the total population were fol-lowed because of...

Ngày tải lên: 13/08/2014, 03:20

... direct testing of concrete to assess concretestrength The condition of the concrete and extent ofdistress is indirectly assessed by strength testing becausedeterioration results in a strength ... obtain paired data (core strength and in-place test results) from different parts of the structure toobtain representative samples of compressive strength.Regression analysis of the correlation data ... estimate compressive strength or to compare relative compressive strength at different locations in the structure Where in-place tests are used for estimating in-placecompressive strength, a strength...

Ngày tải lên: 24/10/2014, 17:26

... the strength test results is often confounded by various factors that affect either the in-place strength of the concrete or the measured strength of the test specimen The scatter in strength test ... Acknowledging that strength tests of the “short” cores may not produce strength test results that accurately reflect the strength of the concrete in the columns, a relative comparison of the two concrete ... concerning some of these factors and provides guidance for the interpretation of core strength test results The presentation of these topics follows the logical sequence of tasks in a core-testing program...

Ngày tải lên: 24/10/2014, 17:40

... One component of this is the ESP end-term test, a kind of achievement test that second-year students are required to sit for at the end of the semester As the test accounts for 50% of the final ... Specific Purposes Language tests are classified in a number of ways In terms of testing method, language tests consist of oral and written ones Based on the methods of scoring and marking, they ... achievement tests I.2.1 Definition and types of achievement tests Different researchers have proposed different definitions of achievement tests but they all agree that this kind of test is used...

Ngày tải lên: 28/03/2015, 10:31

... terms of their testanxiety level and test results? test- What are the participants’ opinions of test-taking strategy instructions used to reduce their test anxiety and improve the test results? ... terms of their testanxiety level and test results? test- What are the participants’ opinions of test-taking strategy instructions used to reduce their test anxiety and improve the test results? ... thatinfluence students’ reactions to language tests are perceptions of test validity, time limit,test techniques, test format, length, testing environment and clarity of test instructions(Young, 1991) In...

Ngày tải lên: 13/10/2015, 14:45

... effectiveness of the book for future use Trang 6TABLE OF CONTENTS Declaration i Acknowledgements ii Abstract .iii Table of contents iv List of Abbreviations vii List of Tables viii List of Figures ... INTRODUCTION 1 Rationale of the study 1 2 Aims of the study 2 3 Research question 2 4 Scope of the study 2 5 Significance of the study 3 6 Method of the study 3 7 Overview of the study 3 PART ... knowledge of grammar such as tenses, kinds Each of two levels in CEFR corresponds to one of the YLE tests These objectives according to CEFR coincide with those of the Cambridge ESOL YLE Tests After...

Ngày tải lên: 05/11/2015, 20:51