Resistencia a la rotura y a la abrasión de adoquines de hormigón para pavimentos, en función del peso específico (en seco) y de la velocidad de ultrasonidos

Autor:	T. Haktanir, K. Ari
Rok vydání:	2005
Předmět:	Engineering business.industry Building and Construction law.invention Portland cement Compressive strength Ultrasonic pulse velocity Mechanics of Materials law Forensic engineering General Materials Science Geotechnical engineering business Specific gravity
Zdroj:	Materiales de Construcción. 55:5-12
ISSN:	1988-3226 0465-2746
Popis:	Artificial Portland cement concrete paving blocks are widely used in many countries. These paving blocks come in a variety of designs with names such as "Interlocking" and "Italian Flower", and are manufactured with special machinery using rather high quality concrete having a compressive strength of about 50 MPa. Concrete blocks are employed instead of natural cobble stones for essentially economic reasons. The laboratoiy equipment required to measure paving block splitting strength and abrasion resistance, two of the chief properties to be tested in quality checks, is costly and the tests are time-consuming and labour-intensive. The present paper reports on a detailed experimental study performed to relate the splitting strength and abrasion resistance of concrete paving blocks to "dry bulk specific gravity" (DBSG) and "ultrasonic pulse velocity" (UPV), respectively. Statistically significant regression equations describing the dependence of splitting strength on DBSG and abrasion resistance on UPV were obtained with data from random samples of material provided by seven different manufacturers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::27d120f41294dc6bf15c240a887d587c https://doi.org/10.3989/mc.2005.v55.i278.185 Zobrazit plný text záznamu