Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio
Tarek Uddin MOHAMMED , Aziz Hasan MAHMOOD , Mohammad Zunaied-Bin-HARUN , Jamil Ahmed JOY , Md. Asif AHMED
Front. Struct. Civ. Eng. ›› 2021, Vol. 15 ›› Issue (6) : 1400 -1414.
Destructive and non-destructive evaluation of concrete for optimum sand to aggregate volume ratio
Aggregates are the biggest contributor to concrete volume and are a crucial parameter in dictating its mechanical properties. As such, a detailed experimental investigation was carried out to evaluate the effect of sand-to-aggregate volume ratio (s/a) on the mechanical properties of concrete utilizing both destructive and non-destructive testing (employing UPV (ultrasonic pulse velocity) measurements). For investigation, standard cylindrical concrete samples were made with different s/a (0.36, 0.40, 0.44, 0.48, 0.52, and 0.56), cement content (340 and 450 kg/m3), water-to-cement ratio (0.45 and 0.50), and maximum aggregate size (12 and 19 mm). The effect of these design parameters on the 7, 14, and 28 d compressive strength, tensile strength, elastic modulus, and UPV of concrete were assessed. The careful analysis demonstrates that aggregate proportions and size need to be optimized for formulating mix designs; optimum ratios of s/a were found to be 0.40 and 0.44 for the maximum aggregate size of 12 and 19 mm, respectively, irrespective of the W/C (water-to-cement) and cement content.
aggregates / non-destructive testing / sand-to-aggregate volume ratio ( s/ a) / maximum aggregate size (MAS)
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
| [45] |
|
| [46] |
|
| [47] |
|
| [48] |
ACI 318–14 Building Code Requirements for Structural Concrete. Farmington Hills, MI: American Concrete Institute, 2014 |
| [49] |
|
| [50] |
|
| [51] |
|
| [52] |
|
| [53] |
Nash’t I H, A’bour S H, Sadoon A A. Finding an unified relationship between crushing strength of concrete and non-destructive tests. In: Middle East Nondestructive Testing Conference & Exhibition. 2005, 27– 30 |
| [54] |
|
| [55] |
|
| [56] |
|
| [57] |
|
| [58] |
|
| [59] |
|
| [60] |
|
Higher Education Press 2021.
/
| 〈 |
|
〉 |