Impact of Concrete Quality on Sustainability

Kusuma, Gideon; Budidarmawan, Johannes; Susilowati, Ani

doi:10.1016/j.proeng.2015.11.122

Cited by 24 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Selecting the best method for curing conserves the natural resources such as reducing cement quantity leading to have members with high durability and toughness [13]. Kewalramani selected the polythene sheets because these are available, reusable and able to cover all concrete items even the infrastructure items, prevent water loss by evaporation to help in curing and hydration, and provide the element by temperature, solar radiation and relative humidity [14].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Construction activities are also the main responsible for consuming around 30% of the emissions of global greenhouse [14]. Engineers agree that the concrete is the most important product all over the world.…”

Section: Introductionmentioning

confidence: 99%

“…Selecting the optimum aggregate size, using cementitious materials, designing the appropriate admixtures and controlling the batching accuracy can help to make a sustainable concrete [14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sustainability Requirements of Concrete Structures

Rageh¹,

Hosny²,

Abdel-Rehem³

2017

AJCEA

View full text Add to dashboard Cite

The objective of this research paper is to discuss the main requirements which may affect the sustainability of concrete structures and develop the relative weights of these requirements. A questionnaire survey was conducted among construction experts, such as college staff, contractors and construction engineers. The survey was conducted to identify the relative weights of the concrete sustainability requirements. After reviewing literature, fifty nine factors which affect the concrete sustainability were prepared and divided them into 12 categories. A pilot study was conducted by 19% of sample size to enhance the questionnaire design. The pilot study was filled out by 10 college professors and 9 engineers with experience more than 10 years. This study helped us to modify the requirements which were directly connected with the concrete sustainability. Researchers found that the most important factors were related to "Aggregate" category. Aggregate category has the weight of 17.64% and waste category has the weight of 13.04%. These two categories have about 30% of concrete sustainability weight. The Green Pyramid Rating System (GPRS) was used in the present research to know what could be added.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Sustainability Requirements of Concrete Structures

Rageh¹,

Hosny²,

Abdel-Rehem³

2017

AJCEA

View full text Add to dashboard Cite

show abstract

“…Materials are now evaluated for environmental impact associated with their manufacturing and transportation. Concrete is the most commonly used construction material, with a 4% annual increase in cement production due to demand (Kusuma, Budidarmawan, & Susilowati, 2015). However, the construction of city infrastructure, which is the base for economic growth and job creation, results in a release of significant amounts of CO2 and greenhouse gas emissions.…”

Section: Introductionmentioning

confidence: 99%

Elastic properties of cement phases using molecular dynamic simulation

Arar¹

2021

Preprint

View full text Add to dashboard Cite

The goal of this thesis is to shed light on the elastic properties, especially the Young modulus, of clinker phases and hydration products of cement paste through molecular dynamic simulation by COMPASS force field. The parameters that can affect the elastic properties of cement phases were also targeted, with special attention paid to analog C-S-H minerals, in which the Tobermorite family and Jennite were simulated to render their structures representative of C-S-H structure. The molecular dynamic simulations of this study show that CO force field can be applicable for most clinker phases and hydration products. Jennite, with its porosity and finite silicate chain accounted for, can be considered the closer and representative structure of C-S-H. In addition, this study confirms the important effect of C/S ratio, packing factor and chain length on elastic properties of C-S-H.

show abstract

“…Earthquake damage records in Indonesia also show the number of houses damaged in West Sumatra, including Padang City, which is the biggest one [7]. Recent researchers highlighted the importance of producing a good quality of concrete which can contribute to reducing the environmental impact of concrete production and achieve green technology on for concrete building [8], [9]. Meanwhile, Juliafad et al [10] presented the statistical data of concrete strength from existing buildings in Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Concreting Workmanship in Indonesia Study Case: Padang City, West Sumatra, Indonesia

Juliafad

Rani

Rifwan

et al. 2019

Int. J. Adv. Sci. Eng. Inf. Technol.

View full text Add to dashboard Cite

This research gives information about the practice of concreting work in Reinforced Concrete (RC) building project in Indonesia. The study area is Padang City, which has suffered severe damages due to September 2009 Earthquake. The target interviewee is 100 builders who are constructing RC buildings. This interview together with observation was conducted by directly visiting the construction sites. While collecting information about the main factors which contribute to RC building quality, e.g., concrete mixing, compaction, concrete placing and curing, the information about the profile of the builders have been collected. The results show that the workers dominate the profile of builders in productive age with 30 years experiences on average. However, 90% of the builders yet experience any construction workshop. The concreting work, which is conducted by the builders, yet reaches the required standard. More than 50% of the builders produced concrete with the higher water-cement ratio, and almost 65% admitted that they add more water after concrete`s setting time is finished. There are 3common methods of concrete compaction which is used. 6% of the builders use a vibrator, 43% use the rodding method, 28% use hummer, and 8% choose to add more water to placed concrete to increase concrete workability. Meanwhile, more than 60% of the builders do not cure the placed concrete. The results show that construction practice that is conducted by the local builders is needed to be improved. The mistakes seem to be repeated over a generation since the source of learning of the builders is mainly from their senior builder (77.25%) and self-learning (2.5%). Only 7.5% that admitted they had experienced on construction workshop.

show abstract

Impact of Concrete Quality on Sustainability

Cited by 24 publications

References 1 publication

Sustainability Requirements of Concrete Structures

Sustainability Requirements of Concrete Structures

Elastic properties of cement phases using molecular dynamic simulation

Concreting Workmanship in Indonesia Study Case: Padang City, West Sumatra, Indonesia

Contact Info

Product

Resources

About