scholarly journals Nondestructive Determination of Strength of Concrete Incorporating Industrial Wastes as Partial Replacement for Fine Aggregate

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8256
Author(s):  
Temple Chimuanya Odimegwu ◽  
A. B. M. Amrul Kaish ◽  
Ideris Zakaria ◽  
Manal Mohsen Abood ◽  
Maslina Jamil ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Industrial Waste ◽  
Test Method ◽  
Waste Materials ◽  
Partial Replacement ◽  
Material Strength ◽  
Fine Aggregate ◽  
Rebound Number ◽  
Compressive Strength Of Concrete ◽  
Alum Sludge

Schmidt rebound hammer test was employed in this study as a nondestructive test. This test method has been universally utilized due to its non-destructiveness for quick and easy assessment of material strength properties and quality of concrete of an existing structure. Industrial waste materials (air-dried alum sludge, treated alum sludge, limestone dust and quarry dust) were employed as replacement material for fine aggregates in this study. A normal strength concrete was designed to achieve 35 MPa at 28 days, with industrial waste materials replacing fine aggregate at different percentages (0%, 5%, 10% and 15%), and then cured for 7, 28 and 180 days. The compressive strength values and rebound numbers for all the mixes obtained were correlated, and a regression equation was established between compressive strength and Schmidt rebound number. The correlation result showed an excellent relationship between rebound number and compressive strength of concrete produced in this study at all curing ages, with correlation coefficients of R2 = 0.98, R2 = 0.99 and R2 = 0.98. The predicted equation showed a strong relationship with the experimental compressive strength. Therefore, it can be used for the prediction of compressive strength of concrete with industrial waste as a replacement for fine aggregate.

scholarly journals Effects of marble, timber, and glass powder as partial replacements for cement

2018 ◽  
Vol 7 (2) ◽  
pp. 63 ◽  
Author(s):  
Bassam A. Tayeh
Keyword(s):  
Compressive Strength ◽  
Glass Powder ◽  
Waste Materials ◽  
Unit Weight ◽  
Partial Replacement ◽  
Replacement Level ◽  
Glass Marble ◽  
Concrete Mechanical Properties ◽  
Compressive Strength Of Concrete ◽  
The Impact

Waste materials, such as glass, marble, and timber, are pressing environmental problems worldwide, and their environmental impact can be best overcome by reusing them. This research mainly aims to determine the impact of using waste materials, such as crushed glass, crushed marble, and burned wood in powder form, as partial replacements for cement on the compressive strength of concrete. Mechanical properties (e.g., compressive strength) and physical properties (e.g., workability and unit weight) were investigated. The powdered waste materials (after passing through sieve #200) were partially replaced with cement by ratios of 10%, 20%, and 30%. Compressive strength was tested on the 7th, 28th, and 56th days. Results showed that workability decreased as the partial replacement level of glass powder, marble powder, and timber ash increased. The results also showed a decrease in the compressive strength of concrete when the replacement level was increased from 10% to 30% for each waste material.

Experimental Study on Partial Replacement of Materials like Industrial Waste & Rice Husk with Clay Mortar

2021 ◽  
Vol 9 (8) ◽  
pp. 1583-1587
Author(s):  
Vrishabh V. Zirange
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Industrial Waste ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
River Sand ◽  
Durability Test ◽  
Foundry Sand ◽  
History Of Construction ◽  
White Clay

Abstract: Ancient peoples were used mud mortar for their stone houses. The result was a stone home that was both solid and warm and lasted for lifetimes. Mud made houses creates wonderful warm houses as compared to concrete made houses. In the history of construction, clay mortar was followed by lime mortar. Cement manufacturing is one of the major contributors in global warming and climate change. Also fine aggregate is the natural resource and it is limited in nature, thus industrial sand can be alternative for fine aggregate. We are going to use PPC cement because PPC cement resist sulphate attack more than OPC cement and also it is quite cheap. The setting time of the PPC cement is more than OPC cement but when it settled completely then it gives more strength more than OPC cement. Also they used river sand in there project and nowadays there is shortage of river sand that’s why we are going to use foundry sand partially replacement with sand. Foundry sand is a industrial waste sand so we can save money by using foundry sand. The mortar with the alternative fine aggregate, mixed with different combinations of binding materials. We take White clay to River sand proportion as 1:1. In that we partially replace white clay with PPC cement and in other hand River sand partially replaced with Industrial waste(Foundry sand) and also with Rice husk and that mix proportions was tested for 28 days Compressive strength & after curing of 28 days ,cubes cured in acid & alkali solution for Durability strength. The mortar with 20% PPC cement + 80% white clay & 40% foundry sand + 60% river sand (proportion of white clay to river sand is 1:1) has compressive strength in the range of 4.38MPa (Compressive strength) & 4.42Mpa (Compressive strength after Durability test) and these mixes compared with 1:6 conventional mortar proportion, which is acceptable as per the IS code 2250-1981 specification, the minimum strength requirement of mortar to be 3 MPa. Therefore, the use of stabilized mud mortar in construction would prove to be sustainable as well economical. Keywords: Mud mortar, Foundry sand, PPC cement, Compressive strength, Durability test.

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