{"id":45174,"date":"2024-10-17T07:06:50","date_gmt":"2024-10-17T07:06:50","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/astm-c1072-2\/"},"modified":"2024-10-24T15:59:33","modified_gmt":"2024-10-24T15:59:33","slug":"astm-c1072-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/astm\/astm-c1072-2\/","title":{"rendered":"ASTM-C1072"},"content":{"rendered":"

ASTM C1072-11<\/h3>\n

Historical Standard: Standard Test Methods for Measurement of Masonry Flexural Bond Strength<\/h4>\n
\n

ASTM C1072<\/h4>\n

Scope<\/strong><\/p>\n

1.1 These test methods evaluate the flexural bond strength, normal to the bed joints, of masonry built of manufactured masonry units. Sampling and testing procedures are referenced, and terms are defined. Three different specimen fabrication methods are specified, each for a different purpose:<\/p>\n

1.1.1 The first method is the \u201c<\/span>Test Method for Laboratory-Prepared Specimens.\u201d<\/span> Its purpose is to compare the bond strengths (under the given conditions) of masonry mortars. It could be used, for example, to check the quality of mortar products after production, or to indicate the bond strength (under the given conditions) of a mortar product without requiring the product to be tested in combination with many different units. It is not intended to represent field conditions. It uses standard concrete masonry units. Mortars are batched by weight equivalents of volume proportions and are mixed to a prescribed flow. Prisms are constructed using a jig and are bag-cured.<\/p>\n

1.1.2 The second method is the \u201c<\/span>Test Method for Field-Prepared Specimens.\u201d<\/span> Its purpose is to evaluate the bond strength (under the given conditions) of a particular unit-mortar combination, either for preconstruction evaluation of materials or for quality control purposes during construction. Mortars are batched conventionally, and the flow is not prescribed. Prisms are constructed conventionally (no jig) and are bag-cured.<\/p>\n

1.1.3 The third method is the \u201c<\/span>Test Method for Prisms Removed from Existing Masonry.\u201d<\/span> Its purpose is to evaluate the bond strength of unit-mortar combinations of prisms cut from existing walls.<\/p>\n

1.1.4 The three methods are not consistent, nor are they intended to be. They are intended to be used for three different purposes. To make this clear, the three methods are presented separately.<\/p>\n

1.1.5 Appendix X1 suggests two possible criteria for assessing the bond strength values obtained using these test methods. These possible evaluation criteria are given for illustration only and are not mandatory.<\/p>\n

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.<\/p>\n

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.<\/span><\/p>\n

Keywords<\/strong><\/p>\n

assemblies; bond; flexural tensile stress; flexure; masonry; Bond strength–masonry\/mortar; Cement mortars; Flexural bond strength; Flexural testing–masonry units; Loading tests–concrete; Masonry assemblages; Mortar (bond strength); Prisms; Water retention<\/p>\n

ICS Code<\/strong><\/p>\n

ICS Number Code 91.060.10 (Walls. Partitions. Facades)<\/p>\n

DOI:<\/strong> 10.1520\/C1072-11<\/p>\n<\/div>\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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nScope
Referenced Documents
Terminology <\/td>\n<\/tr>\n
2<\/td>\nSummary of Test Method
Significance and Use
Apparatus
Materials
Temperature and Humidity
Procedure <\/td>\n<\/tr>\n
3<\/td>\nReport
Precision and Bias
Summary of Test Method
Significance and Use
Apparatus <\/td>\n<\/tr>\n
4<\/td>\nSampling
Procedure
Report <\/td>\n<\/tr>\n
5<\/td>\nPrecision and Bias
Summary of Test Method
Significance and Use
Apparatus
Test Specimen
Procedure <\/td>\n<\/tr>\n
6<\/td>\nReport
Precision and Bias
Keywords
A1. STANDARD CONCRETE MASONRY UNITS
A1.1 <\/td>\n<\/tr>\n
7<\/td>\nA2. FABRICATION OF LABORATORY-PREPARED TEST SPECIMENS
A2.1
FIG. A2.1 <\/td>\n<\/tr>\n
8<\/td>\nA3. BOND STRENGTH TESTING APPARATUS AND PROCEDURES
A3.1 Apparatus
FIG. A2.2
FIG. A2.3 <\/td>\n<\/tr>\n
9<\/td>\nA3.2 Test Procedures
A3.3 Calculations
FIG. A3.1 <\/td>\n<\/tr>\n
10<\/td>\nFIG. A3.2 <\/td>\n<\/tr>\n
11<\/td>\nFIG. A3.3 <\/td>\n<\/tr>\n
12<\/td>\nFIG. A3.4 <\/td>\n<\/tr>\n
13<\/td>\nFIG. A3.4 <\/td>\n<\/tr>\n
14<\/td>\nFIG. A3.4 <\/td>\n<\/tr>\n
15<\/td>\nFIG. A3.5
FIG. A3.6 <\/td>\n<\/tr>\n
16<\/td>\nX1. POSSIBLE CRITERIA FOR EVALUATING TEST RESULTS
X1.1 Introduction
X1.2 Possible Acceptance Criterion Using a Lower Characteristic Value
X1.3 Possible Acceptance Criterion Using One-Sided Tolerance Limits <\/td>\n<\/tr>\n
17<\/td>\nX2. DETERMINATION OF WEIGHT AND CENTROID OF UPPER CLAMPING BRACKET
X2.1
TABLE X1.1 <\/td>\n<\/tr>\n
18<\/td>\nFIG. X2.1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

C1072-11 Standard Test Methods for Measurement of Masonry Flexural Bond Strength<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASTM<\/b><\/a><\/td>\n2011<\/td>\n19<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":45175,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1236,2637],"product_tag":[],"class_list":{"0":"post-45174","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-91-060-10","7":"product_cat-astm","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/45174","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\/45175"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=45174"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=45174"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=45174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}