Concrete Technology Lab HWBelow the results of rebound number shown in table 1 for a little thick wall,calculate the approximate compressive strength:Table 1: Rebound Number readsNo.1 2 3 4 56 7 8 9 10 11 12 13 14 15RN reads 50 40 43 52 47 54 46 20 48 51 44 46 25 50 53Beton-Prüfhammer N/NR Scléromètre à béton N/NR. Concrete Test Hammer N/NR70[605040302010203525 30Rückprall R Rebondissement R.Druckfestigkeit (Würfel 200 mm)Résistance à la compression (cube de 200 mm)Compressive strength (cube of 200 mm)Wm N/mm²40Rebound R*Betonalter 14 bis 56 TageAge du béton 14 à 56 joursAge of concrete 14 to 56 daysCOPYRIGHT BY PROCEQ SA ZURICH45 50 55Fig. 1

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Concrete Technology Lab HW Below the results of rebound number shown in table 1 for a little thick wall, calculate the approximate compressive strength: Table 1: Rebound Number reads No. 1 2 3 4 5 6 7 RN reads 50 40 43 52 47 54 46 20 8 9 10 11 12 13 14 15 48 51 44 46 25 50 53 *

Concrete Technology Lab HW Below the results of rebound number shown in table 1 for a little thick wall, calculate the approximate compressive strength: Table 1: Rebound Number reads No. 1 2 3 4 5 6 7 RN reads 50 40 43 52 47 54 46 20 8 9 10 11 12 13 14 15 48 51 44 46 25 50 53 *

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

Concrete Technology Lab HW
Below the results of rebound number shown in table 1 for a little thick wall,
calculate the approximate compressive strength:
Table 1: Rebound Number reads
No.
1 2 3 4 56 7 8 9 10 11 12 13 14 15
RN reads 50 40 43 52 47 54 46 20 48 51 44 46 25 50 53
Beton-Prüfhammer N/NR Scléromètre à béton N/NR. Concrete Test Hammer N/NR
70[
60
50
40
30
20
10
20
35
25 30
Rückprall R Rebondissement R
.
Druckfestigkeit (Würfel 200 mm)
Résistance à la compression (cube de 200 mm)
Compressive strength (cube of 200 mm)
Wm N/mm²
40
Rebound R
*
Betonalter 14 bis 56 Tage
Age du béton 14 à 56 jours
Age of concrete 14 to 56 days
COPYRIGHT BY PROCEQ SA ZURICH
45 50 55
Fig. 1

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