Optimization Of Cementitious Material Content For Sustainable Concrete Mixtures Through Value Engineering Approach

2019 ◽  
Author(s):  
Adel Baghdady ◽  
Walid Sayed Abdulgalil ◽  
Ahmad Asran ◽  
Ibrahim Nosier
Keyword(s):  
Cementitious Material ◽  
Value Engineering ◽  
Material Content ◽  
Sustainable Concrete ◽  
Engineering Approach ◽  
Concrete Mixtures

Optimization of Cementitious Material Content for Sustainable Concrete Mixtures

2012 ◽  
Vol 24 (6) ◽  
pp. 745-753 ◽  
Author(s):  
Rui Liu ◽  
Stephan A. Durham ◽  
Kevin L. Rens ◽  
Anu Ramaswami
Keyword(s):  
Cementitious Material ◽  
Material Content ◽  
Sustainable Concrete ◽  
Concrete Mixtures

STRENGTH, SHRINKAGE, AND PERMEABILITY PERFORMANCE OF SEAWATER CONCRETE

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Adel Younis ◽  
Usama Ebead ◽  
Prannoy Suraneni ◽  
Antonio Nanni
Keyword(s):  
Experimental Program ◽  
Hardened Concrete ◽  
Chloride Permeability ◽  
Strength Performance ◽  
Sustainable Concrete ◽  
Concrete Shrinkage ◽  
Concrete Mixtures ◽  
Study Results ◽  
Compressive Strength Test ◽  
Global Concern

Given the increasing global concern of freshwater scarcity, the use of seawater in concrete mixtures appears to be a way forward towards achieving sustainable concrete, especially in the case of non-reinforced concrete applications or with the use of non-corrosive reinforcement. This paper reports on the results of an experimental study to compare the freshwater-and seawater-mixed concretes in terms of their strength, shrinkage and permeability performance. The experimental program included the following: (i) compressive strength test (at 3, 7, 28, and 56-day ages); (ii) concrete shrinkage test (at Days 4, 7, 14, 21, 28, and 56 following mixing); and (iii) permeability tests (rapid chloride permeability and water absorption at Days 28 and 56 following mixing). As for the study results, seawater concrete showed a slightly higher early-age (i.e., till Day 7) strength performance than that of freshwater-mixed counterpart, followed by a strength performance that is 7–10% inferior to the freshwater concrete after 28 days or later. Also, the shrinkage of seawater concrete was slightly higher than that of freshwater concrete, with a difference of 5% reported after 56 days following mixing. Finally, the permeability performance of hardened concrete in seawater and freshwater mixtures was similar.

Compressive Strength of Sustainable Concrete Mixes with Different Maximum Size Aggregates

2019 ◽  
Vol 803 ◽  
pp. 228-232
Author(s):  
Samer Al Martini ◽  
Ziad Hassan ◽  
Ahmad Khartabil
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Maximum Size ◽  
Controlled Environment ◽  
Concrete Compressive Strength ◽  
Binary Blends ◽  
Sustainable Concrete ◽  
Concrete Mixtures ◽  
Compressive Strength Test ◽  
High Range

The current study investigates the effect of aggregate’s maximum size on the compressive strength of sustainable flowable concrete. The concrete mixtures were mixed for 2 hours under lab controlled environment. The purpose of the prolonged mixing was to simulate concrete in a transit truck during transportation to a construction site. The mechanical properties of the mixes were investigated through compressive strength test. Three groups of concrete mixes were prepared: the first one with 20 mm maximum size aggregates, the second group with 10 mm maximum size aggregates and third group with 5 mm max size. The concrete mixes incorporated GGBs and fly ash (FA) in binary blends. To maintain consistent initial slump for all mixes, polycarboxylate based high-range water-reducing admixture (HRWR) was used. The concrete compressive strength was measured at 1, 3, 7, and 28 days. The results showed that the mechanical properties of sustainable flow mixtures investigated were highly affected by FA, GGBS, and maximum size aggregates.

Value Engineering Approach to Low‐Volume Road Bridge Selection

1988 ◽  
Vol 114 (9) ◽  
pp. 1962-1977 ◽  
Author(s):  
Hota V. S. Ganga Rao ◽  
Richard Ward ◽  
Victor Howser
Keyword(s):  
Value Engineering ◽  
Engineering Approach ◽  
Low Volume

scholarly journals Extent of Implementing Target Costing and Value Engineering Approach to Reducing Costs: A Survey in Jordanian Shareholding Companies for Food Industries

2018 ◽  
Vol 10 (1) ◽  
pp. 390 ◽  
Author(s):  
Suleiman El-Dalahmeh
Keyword(s):  
Response Rate ◽  
Engineering Application ◽  
Value Engineering ◽  
Target Costing ◽  
Food Industries ◽  
Engineering Approach ◽  
Target Cost ◽  
Expected Benefits ◽  
Reducing Costs ◽  
Basic Hypothesis

This Study aims at identifying the extent of implementing Target Costing and Value Engineering approach to reducing costs of Jordanian public shareholding companies for food industries. To achieve the study objectives, the researcher distributed personally a questionnaire to a random sample of (145) accountants in the Hashemite kingdom of Jordan. (100) questionnaires were returned. The response rate was 69%. In addition, the survey sought to verify the five basic hypothesis of the study. In order to analysis the data, the researcher used means, standard deviations and T-test. The results of the survey revealed that availability of the components of application of target cost, as well as companies have awareness, concepts, principles and the importance of applying target costs to managing costs so as to improve profitability, and the companies are using value engineering to achieve a cost to reach the target costs. The results also showed that there were some difficulties to hinder the application of target costs and value engineering in Jordanian shareholding companies for food industries. The most important difficulties were: The lack of sufficient knowledge to manage the company on how to implement the target cost and value engineering. The lack of research and publication related to the benefits target cost and value engineering. Application costs greater than the expected benefits.

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