{"id":160639,"date":"2024-10-19T09:39:00","date_gmt":"2024-10-19T09:39:00","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/aci-228-1r-03\/"},"modified":"2024-10-25T01:57:39","modified_gmt":"2024-10-25T01:57:39","slug":"aci-228-1r-03","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/aci\/aci-228-1r-03\/","title":{"rendered":"ACI 228.1R 03"},"content":{"rendered":"

Guidance is provided on the use of methods to estimate the in-place strength of concrete in new and existing construction. The methods include: rebound number, penetration resistance, pullout, break-off, ultrasonic pulse velocity, maturity, and cast-in-place cylinders. The principle, inherent limi\u00adtations, and repeatability of each method are reviewed. Procedures are presented for developing the relationship needed to estimate compressive strength from in-place results. Factors to consider in planning in-place tests are discussed, and statistical techniques to interpret test results are presented. The use of in-place tests for acceptance of concrete is intro\u00adduced. The appendix provides information on the number of strength levels that should be used to develop the strength relationship and explains a regression analysis procedure that accounts for error in both dependent and independent variables. Keywords: coefficient of variation; compressive strength; construction; in-place tests; nondestructive tests; safety; sampling; statistical analysis.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nCONTENTS <\/td>\n<\/tr>\n
2<\/td>\nCHAPTER 1\u2014 INTRODUCTION
1.1\u2014 Scope
1.2\u2014Need for in-place tests during construction <\/td>\n<\/tr>\n
3<\/td>\n1.3\u2014Influence of ACI 318
1.4\u2014Recommendations in other ACI documents
1.5\u2014Existing construction <\/td>\n<\/tr>\n
4<\/td>\n1.6\u2014Objective of report
CHAPTER 2\u2014 REVIEW OF METHODS
2.1\u2014 Introduction
2.2\u2014Rebound number (ASTM C 805) <\/td>\n<\/tr>\n
5<\/td>\n2.3\u2014Penetration resistance (ASTM C 803\/C 803M) <\/td>\n<\/tr>\n
6<\/td>\n2.4\u2014Pullout test (ASTM C 900) <\/td>\n<\/tr>\n
9<\/td>\n2.5\u2014Break-off number (ASTM C 1150) <\/td>\n<\/tr>\n
10<\/td>\n2.6\u2014Ultrasonic pulse velocity (ASTM C 597) <\/td>\n<\/tr>\n
11<\/td>\n2.7\u2014Maturity method (ASTM C 1074) <\/td>\n<\/tr>\n
13<\/td>\n2.8\u2014Cast-in-place cylinders (ASTM C 873
2.9\u2014Strength limitations
2.10\u2014Combined methods <\/td>\n<\/tr>\n
14<\/td>\n2.11\u2014Summary
CHAPTER 3\u2014 STATISTICAL CHARACTERISTICS OF TEST RESULTS
3.1\u2014Need for statistical analysis <\/td>\n<\/tr>\n
15<\/td>\n3.2\u2014Repeatability of test results
3.2.1 Rebound number <\/td>\n<\/tr>\n
16<\/td>\n3.2.2 Penetration resistance <\/td>\n<\/tr>\n
17<\/td>\n3.2.3 Pullout test <\/td>\n<\/tr>\n
19<\/td>\n3.2.4 Break-off test <\/td>\n<\/tr>\n
20<\/td>\n3.2.5 Pulse velocity
3.2.6 Maturity method <\/td>\n<\/tr>\n
21<\/td>\n3.2.7 Cast-in-place cylinder
CHAPTER 4\u2014 DEVELOPMENT OF STRENGTH RELATIONSHIP
4.1\u2014General
4.2\u2014New construction
4.2.1 General
4.2.2 Number of strength levels
4.2.3 Number of replications <\/td>\n<\/tr>\n
22<\/td>\n4.2.4 Regression analysis <\/td>\n<\/tr>\n
23<\/td>\n4.2.5 Procedures for correlation testing
4.2.5.1 Rebound number <\/td>\n<\/tr>\n
24<\/td>\n4.2.5.2 Penetration resistance
4.2.5.3 Pullout test
4.2.5.4 Break-off test
4.2.5.5 Ultrasonic pulse velocity <\/td>\n<\/tr>\n
25<\/td>\n4.2.5.6 Maturity method
4.2.5.7 Cast-in-place cylinder
4.3\u2014Existing construction
4.3.1 General
4.3.2 Developing strength relationship <\/td>\n<\/tr>\n
26<\/td>\nCHAPTER 5\u2014 IMPLEMENTATION OF IN- PLACE TESTING
5.1\u2014 New construction
5.1.1 Preconstruction consensus
5.1.2 Number of test locations
5.1.3 Number of tests per location
5.1.4 Providing access to test locations <\/td>\n<\/tr>\n
28<\/td>\n5.1.5 Distribution of tests <\/td>\n<\/tr>\n
29<\/td>\n5.1.6 Critical dimensions
5.2\u2014Existing construction
5.2.1 Pretesting meeting
5.2.2 Sampling plan
5.2.3 Number of tests <\/td>\n<\/tr>\n
30<\/td>\nCHAPTER 6\u2014 INTERPRETATION AND REPORTING OF RESULTS
6.1\u2014General
6.2\u2014Statistical methods
6.2.1 Danish method (Bickley 1982b)
6.2.2 General tolerance factor method (Hindo andBergstrom 1985) <\/td>\n<\/tr>\n
32<\/td>\n6.2.3 Rigorous method (Stone and Reeve 1986)
6.2.4 Alternative method (Carino 1993) <\/td>\n<\/tr>\n
34<\/td>\n6.2.5 Summary
6.3\u2014Reporting results <\/td>\n<\/tr>\n
35<\/td>\nCHAPTER 7\u2014 IN-PLACE TESTS FOR ACCEPTANCE OF CONCRETE
7.1\u2014 General
7.2\u2014Acceptance criteria
7.2.1 Molded cylinders
7.2.2 Cores
7.2.3 In-place tests <\/td>\n<\/tr>\n
36<\/td>\n7.3\u2014Early-age testing
CHAPTER 8\u2014 REFERENCES
8.1\u2014 Referenced standards and reports <\/td>\n<\/tr>\n
37<\/td>\n8.2\u2014Cited references <\/td>\n<\/tr>\n
40<\/td>\nAPPENDIX
A.1\u2014 Minimum number of strength levels <\/td>\n<\/tr>\n
41<\/td>\nA.2\u2014Regression analysis with X-error
\n(Mandel 1984) <\/td>\n<\/tr>\n
42<\/td>\nA.3\u2014Standard deviation of estimated Y-value
\n(Stone and Reeve 1986) <\/td>\n<\/tr>\n
43<\/td>\nA.4\u2014Example <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

228.1R-03: In-Place Methods to Estimate Concrete Strength<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ACI<\/b><\/a><\/td>\n2003<\/td>\n44<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":160644,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2650],"product_tag":[],"class_list":{"0":"post-160639","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-aci","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/160639","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/160644"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=160639"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=160639"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=160639"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}