Influence of Different Curing Days on Mechanical Properties of Concrete with Admixtures of Fly Ash, Blast Furnace Slag and Silica Fume

2013 ◽  
Vol 405-408 ◽  
pp. 2843-2846
Author(s):  
Jeong Eun Kim ◽  
Wan Shin Park ◽  
Sun Woong Kim ◽  
Do Gyeum Kim ◽  
Myung Sug Cho ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Furnace Slag

High performance concrete (HPC) can be made with cement alone or any combination of cement and mineral components, such as, blast furnace slag, fly ash, silica fume, kaolin, rice husk ash, and fillers, such as limestone powder [. In this study, three mixes of high performance concrete (HPC) with same water-binder ratio and different types of mineral admixtures were prepared. he compressive strength, splitting tensile strength and modulus of elasticity values were measured in accordance with the ASTM. The influence of fly ash (FA), blast furnace slag (BS) and silica fume (SF) on mechanical properties of HPC were compared and analyzed. Their mechanical properties are measured at 7 days and 28 days. The results showed that specimen BS45+SF5 performed better than specimens BS30+FA25+SF5 and BS65+SF5 for the compressive strength, splitting tensile strength and modulus of elasticity.

Development of High Performance Concrete Containing Admixture in Nuclear Power Plants

2013 ◽  
Vol 357-360 ◽  
pp. 1062-1065 ◽  
Author(s):  
Jeong Eun Kim ◽  
Wan Shin Park ◽  
Song Hui Yun ◽  
Do Gyeum Kim ◽  
Jea Myoung Noh
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Modulus Of Elasticity ◽  
Blast Furnace Slag ◽  
High Performance ◽  
Splitting Tensile Strength ◽  
Furnace Slag

This paper presents the results of an experimental study on the compressive strength, splitting tensile strength and modulus of elasticity characteristics of high performance concrete. These tests were carried out to evaluate the mechanical properties of HPC for up to 7 and 28 days. Mixtures were prepared with water to binder ratio of 0.40. Two mixtures were containing fly ash at 25%, silica fume at 5% cement replacement, respectively. Another mixture was contains blast furnace slag and fly ash at 25%. Three standard 100¥a200 cylinder specimens were prepared. HPC showed improvement in the compressive strength and splitting tensile strength when ordinary Portland cement was replaced with silica fume. Compare with specimens FA25 and BS25FA25, specimen SF5 showed much more modulus of elasticity. It shows that the use of the blast furnace slag of 25% and fly ash of 25% cement replacement has caused a small increase in compressive strength and splitting tensile strength and modulus of elasticity compared to the only use of fly ash of 25% at 28days. The results indicated that the use of blast furnace slag or silica fume provided the good performance compare to fly ash when the mechanical properties of the high performance concretes were taken into account.

The Relationship of Compressive Strength and Tensile Strength of High Performance Concrete

2014 ◽  
Vol 627 ◽  
pp. 385-388 ◽  
Author(s):  
Jeong Eun Kim ◽  
Wan Shin Park ◽  
Song Hui Yun ◽  
Yong Il Jang ◽  
Hyun Do Yun ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Predicted Values ◽  
Relationship Of ◽  
Furnace Slag

Fly ash and blast furnace slag dumped not only pollutes environment, but also consumes landfills. With the aim of sustainable development, the isolated contribution of fly ash and blast furnace slag in concrete to the mechanical properties of frame concrete is investigated. An experimental study is conducted to investigate mechanical properties of high performance concrete. Test variables are the replacement levels for FA series (10%, 20% and 30%) and for BS series (10%, 30%, 50% and 70%) in place of part of cement. Compressive, splitting tensile strength, modulus of elasticity and flexural strength tests were carried out to evaluate the mechanical properties for up to 7days and 28 days. The mechanical properties of high performance concrete compared with predicted values by ACI 318-02 Code, EC 2-02, JSCE Code, KCI Code and proposed Eq.

Properties of HPC with Fly Ash, Blast Furnace Slag and Silica Fume

2013 ◽  
Vol 372 ◽  
pp. 239-242
Author(s):  
Sun Woong Kim ◽  
Wan Shin Park ◽  
Jeong Eun Kim ◽  
Nam Yong Eom ◽  
Do Gyeum Kim ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Modulus Of Elasticity ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Splitting Tensile Strength ◽  
Furnace Slag

This paper addresses the results of an extensive experimental study on the compressive, splitting tensile strength modulus of elasticity in long-term. These tests were carried out to investigate the mechanical properties of HPC for 56 and 91days. In this work, High performance concrete was designed a water-binder ratio of 0.40. In addition, three different concrete mixes were used in these specimens. The results properties of HPC with fly Ash, blast furnace slag and silica fume were effective for compressive strength splitting tensile strength and modulus of elasticity improvement between 56 to 91 curing days.

An Experimental Study on Mechanical Properties for Ternary High Performance Concrete with Fly-Ash, Blast Furnace Slag, Silica Fume

2012 ◽  
Vol 204-208 ◽  
pp. 3699-3702
Author(s):  
Jeong Eun Kim ◽  
Wan Shin Park ◽  
Sung Ho Cho ◽  
Do Gyeum Kim ◽  
Jea Myoung Noh
Keyword(s):  
Mechanical Properties ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Heat Of Hydration ◽  
Concrete Crack ◽  
Furnace Slag

It is essential that concrete component is made up with aggregate, sand, cement and water. But recently, Public concern is increasing of a variety structure, resource recycle. Also, According to heat of hydration rising, Concrete is making a causative of concrete-crack. Concrete-crack causes a falling-off in quality of concrete. Therefore, high-performance concrete is evaluated by concrete mechanical properties (compressive strength, splitting tensile strength) with different admixture (fixing W/B 34%), fly ash, blast furnace slag, and silica fume replacement ratio (50%, 50%, and 25%).

Effect of Fly Ash, Silica Fume and Blast Furnace Slag on Mechanical Property of High Performance Concrete

2013 ◽  
Vol 372 ◽  
pp. 243-246 ◽  
Author(s):  
Nam Yong Eom ◽  
Wan Shin Park ◽  
Jeong Eun Kim ◽  
Sun Woong Kim ◽  
Do Gyeum Kim ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Mineral Admixture ◽  
Furnace Slag

The use of mineral admixture such as fly ash, blast furnace slag and silica fume in making high performance concrete has increased. The objective of this study is to investigate mechanical properties of compressive strength, splitting tensile strength and modulus of elasticity of hardened high performance concrete.

Influence of Blast Furnace Slag on the Mechanical Properties of High Performance Concrete

2013 ◽  
Vol 634-638 ◽  
pp. 2716-2719
Author(s):  
Wan Shin Park ◽  
Sung Ho Cho ◽  
Song Hui Yun ◽  
Jeong Eun Kim ◽  
Do Gyeum Kim ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Splitting Tensile Strength ◽  
International Standards ◽  
Binder Ratio ◽  
Furnace Slag

The characteristics of the compressive strength and splitting tensile strength according to replacement ratio of the blast furnace slag were found in this study. The blast furnace slag was utilizes as the concrete mix-material and then, these results were compared with the basis presented in the international standards. In this study, cylinder made of concrete with water/binder ratio 0.34 and blast furnace slag replacement rate of 10%, 30%, 50%, and 70% were prepared to measure the compressive strength and spiting tensile strength. Test results indicate that The 28 days and 91 days compressive strength is affected by blast furnace slag replacement except specimen BS30 and the splitting tensile strength in specimen BS series is slightly larger than that of OPC except specimen BS 30.

Size Effect of High Performance Concrete with Blast Furnace Slag on Compressive Strength and Modulus of Elasticity

2013 ◽  
Vol 405-408 ◽  
pp. 2820-2823 ◽  
Author(s):  
Wan Shin Park ◽  
Jeong Eun Kim ◽  
Nam Yong Eom ◽  
Do Gyeum Kim ◽  
Myung Sug Cho ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Blast Furnace ◽  
Size Effect ◽  
Modulus Of Elasticity ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Standard Size ◽  
Furnace Slag

The 100 x 200 mm cylinder specimens are standard size to measure the compressive strength and modulus of elasticity. However, it is not enough for experimental data of mechanical properties of HPC about size effect. The aim of this study is to investigate the size effect of high performance concrete (HPC) using blast furnace slag (BS) for mechanical properties such as, compressive strength and modulus of elasticity. Therefore, in this study, Type A (100 x 200 mm cylinder specimens) and Type B (150 x 300 cylinder specimens) were prepared. Blast furnace slag is used as a replacement for ordinary Portland cement (OPC). The compressive strength, modulus of elasticity of harden concrete were determined in the laboratory.

Optimization of Concrete Porous Mix Using Slag as Substitute Material for Cement and Aggregates

2017 ◽  
Vol 865 ◽  
pp. 282-288 ◽  
Author(s):  
Jul Endawati ◽  
Rochaeti ◽  
R. Utami
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Silica Fume ◽  
Blast Furnace Slag ◽  
Environmental Effect ◽  
Substitution Effect ◽  
Main Concern ◽  
Binder Material ◽  
Furnace Slag

In recent years, sustainability and environmental effect of concrete became the main concern. Substituting cement with the other cementitious material without decreasing mechanical properties of a mixture could save energy, reduce greenhouse effect due to mining, calcination and limestone refining. Therefore, some industrial by-products such as fly ash, silica fume, and Ground Iron Blast Furnace Slag (GIBFS) would be used in this study to substitute cement and aggregate. This substitution would be applied on the porous concrete mixture to minimize the environmental effect. Slag performance will be optimized by trying out variations of fly ash, silica fume, and slag as cement substitution material in mortar mixture. The result is narrowed into two types of substitution. First, reviewed from the fly ash substitution effect on binder material, highest compressive strength 16.2 MPa was obtained from mixture composition 6% fly ash, 3% silica fume and 17% grinding granular blast-furnace slag. Second, reviewed from slag types as cement substitution and silica fume substitution, highest compressive strength 15.2 MPa was obtained from mortar specimens with air-cooled blast furnace slag. It composed with binder material 56% Portland composite cement, 15% fly ash, 3% silica fume and 26% air-cooled blast furnace slag. Considering the cement substitution, the latter mixture was chosen.

Early Age Cracking Characteristic of Concrete with Compound Admixtures

2013 ◽  
Vol 325-326 ◽  
pp. 71-74
Author(s):  
Yun Feng Li ◽  
Dong Sheng Zhang ◽  
Li Xu
Keyword(s):  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
High Performance ◽  
High Performance Concrete ◽  
Steel Slag ◽  
Test Method ◽  
Mineral Admixture ◽  
Early Age ◽  
Furnace Slag

The shrinkage cracking of concrete plays an important role to the accelerated deterioration and shortening the service life of concrete structures. The mineral admixture will be a perfect component of high performance concrete and its utilization will be a valuable resource for recycling. Early age cracking characteristics of concrete with compound admixtures, such as steel slag, blast furnace slag, fly ash, are studied in this paper using plate test method. The better anti-cracking performance of concrete will be realized when blast furnace slag replacing cement at 30%, steel slag and fly ash as the equal mixture components replacing cement at 30%, three kinds of admixtures replacing cement at 30% under the proper proportion.

scholarly journals Investigation of Mechanical Properties, Durability and Microstructure of Low-Clinker High-Performance Concretes Incorporating Ground Granulated Blast Furnace Slag, Siliceous Fly Ash and Silica Fume

2021 ◽  
Vol 11 (2) ◽  
pp. 830
Author(s):  
Katarzyna Konieczna ◽  
Karol Chilmon ◽  
Wioletta Jackiewicz-Rek
Keyword(s):  
Compressive Strength ◽  
Blast Furnace ◽  
Fly Ash ◽  
Blast Furnace Slag ◽  
High Performance ◽  
Cement Clinker ◽  
Water Penetration ◽  
Granulated Blast Furnace Slag ◽  
Portland Cement Clinker ◽  
Furnace Slag

The main assumption of eco-efficient High-Performance Concrete (HPC) design is the reduction of Portland cement clinker content without negatively affecting the composite’s mechanical and durability properties. In this paper, three low-clinker HPC mixtures incorporating slag cement (CEM III/B as per EN 197-1) and Supplementary Cementitious Materials (SCMs)—Ground Granulated Blast Furnace Slag (GGBFS), Siliceous Fly Ash (SFA) and Silica Fume (SF)—were designed. The maximum amount of Portland cement clinker from CEM III/B varied from 64 to 116 kg in 1 m3 of concrete mix. The compressive strength of HPC at 2, 7, 14, 28, 56, 90 days, and 2 years after casting, as well as the modulus of elasticity on 2-year-old specimens, was tested. The depth of water penetration under pressure and internal frost resistance in freeze–thaw tests were evaluated after 56 days of curing. Additionally, the concrete pH value tests were performed. The microstructure of 2-year-old HPC specimens was analyzed using Scanning Electron Microscopy (SEM). The research proved that it is possible to obtain low-clinker High-Performance Concretes that reach compressive strength of 76–92 MPa after 28 days of curing, show high values of modulus of elasticity (49–52 GPa) as well as increased resistance to frost and water penetration under pressure.

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