Corrigendum to “Performance-based design method of SHCC with compressive strength from 40 to 120 MPa” [Cement and concrete composite, 97 (2019) 202–217]

2019 ◽  
Vol 99 ◽  
pp. 275
Author(s):  
Linzhi Li ◽  
Ziwei Cai ◽  
Kequan Yu ◽  
Y.X. Zhang ◽  
Yao Ding
Keyword(s):  
Compressive Strength ◽  
Design Method ◽  
Performance Based Design ◽  
Cement And Concrete

Research on Simulation Test of Coal Similar Material

2013 ◽  
Vol 850-851 ◽  
pp. 847-850 ◽  
Author(s):  
Lin Chao Dai
Keyword(s):  
Compressive Strength ◽  
Raw Materials ◽  
Similarity Theory ◽  
Design Method ◽  
Uniform Design ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Similar Material ◽  
Cement Ratio ◽  
Water Cement Ratio

In order to study the coal and gas outburst similar simulation experiment, coal similar material was made up based on the similarity theory. Based on the previous similar material study, the cement, sand, water, activated carbon and coal powder was selected as the raw material of similar material. Meanwhile similar material matching program with 5 factors and 6 levels was designed by using Uniform Design Method. And the physical and mechanical properties of the similar material compressive strength was measured under different proportions circumstances. The relationship between similar material and the raw materials was analyzed. The results show that choosing different materials can compound different similar materials with different requirements. And the water-cement ratio plays a decisive influence on the compressive strength of similar material. The compressive strength of similar material decreases linearly when the water-cement ratio increases.

scholarly journals Utilization of tailings in cement and concrete: A review

2019 ◽  
Vol 26 (1) ◽  
pp. 449-464 ◽  
Author(s):  
Mifeng Gou ◽  
Longfei Zhou ◽  
Nathalene Wei Ying Then
Keyword(s):  
Compressive Strength ◽  
Cementitious Materials ◽  
Solid Wastes ◽  
Supplementary Cementitious Materials ◽  
Cement Clinker ◽  
Fine Aggregate ◽  
Granulated Blast Furnace Slag ◽  
Fine Aggregates ◽  
Compressive Strength Of Concrete ◽  
Cement And Concrete

AbstractOne of the advantages of cement and the cement concrete industry in sustainability is the ability to utilize large amounts of industrial solid wastes such as fly ash and ground granulated blast furnace slag. Tailings are solid wastes of the ore beneficiation process in the extractive industry and are available in huge amounts in some countries. This paper reviews the potential utilization of tailings as a replacement for fine aggregates, as supplementary cementitious materials (SCMs) in mortar or concrete, and in the production of cement clinker. It was shown in previous research that while tailings had been used as a replacement for both fine aggregate and cement, the workability of mortar or concrete reduced. Also, at a constant water to cement ratio, the compressive strength of concrete increased with the tailings as fine aggregate. However, the compressive strength of concrete decreased as the replacement content of the tailings as SCMs increased, even whentailings were ground into smaller particles. Not much research has been dedicated to the durability of concrete with tailings, but it is beneficial for heavy metals in tailings to stabilize/solidify in concrete. The clinker can be produced by using the tailings, even if the tailings have a low SiO2 content. As a result, the utilization of tailings in cement and concrete will be good for the environment both in the solid waste processing and virgin materials using in the construction industry.

Experimental Research on Compressive Strength of Self-Compacting Concrete with Recycled Coarse Aggregates

2011 ◽  
Vol 306-307 ◽  
pp. 1084-1087 ◽  
Author(s):  
Jing Li ◽  
Xian Feng Qu ◽  
Lin Fu Wang ◽  
Chong Qing Zhu ◽  
Juan Li
Keyword(s):  
Compressive Strength ◽  
Design Method ◽  
Self Compacting Concrete ◽  
Longitudinal Splitting ◽  
Coarse Aggregates ◽  
Hydraulic Concrete ◽  
Mix Proportion ◽  
Splitting Failure ◽  
Concrete Blocks ◽  
Waste Solid

In order to study cubic compressive strength of recycled coarse aggregates-filled concrete systematically, recycled coarse aggregates with the particle size from 50 to150mm are made from waste solid contents, which are artificially broken from abandoned rubble and concrete blocks. Based on the mix proportion design method of ordinary concrete and test code for hydraulic concrete, 3 groups of recycled coarse aggregates-filled concrete cubic specimens were prepared and the compressive strength of the specimens were tested. The results showed that basic failure pattern of recycled coarse aggregates-filled concrete are longitudinal splitting failure, and that cubic compressive strength is higher than that of self-compacting concrete.

Updating Satisfaction Curve of Concrete Material by Bayesian Method

2013 ◽  
Vol 753-755 ◽  
pp. 564-567
Author(s):  
Ling Zhao ◽  
Guang Jun Zhang ◽  
Bai Sui Zhang ◽  
Wan Wen Wang
Keyword(s):  
Relationship Satisfaction ◽  
Bayesian Method ◽  
Systematic Approach ◽  
Design Method ◽  
Mixture Design ◽  
Performance Based Design ◽  
Next Generation ◽  
Flexible Design ◽  
Concrete Material ◽  
Criterion Level

Performance Based Design (PBD) is being developed as a more reasonable and flexible design method for a next generation of design method. To implement PBD, this paper presents a systematic approach (Bayesian method) for developing concrete material mixture design to satisfaction criterion level relationship. Satisfaction curves describe the probability of concrete reaching or exceeding different criterion level at specified levels of concrete material.

Investigating the Application of DOE Method in Designing a High-Strength and High-Performance Concrete

2014 ◽  
Vol 875-877 ◽  
pp. 776-780
Author(s):  
Mojtaba Valinejad Shoubi ◽  
Azin Shakiba Barough ◽  
Iman Kiani
Keyword(s):  
Compressive Strength ◽  
High Performance ◽  
High Performance Concrete ◽  
Design Method ◽  
High Strength ◽  
Mix Design ◽  
Design Calculation ◽  
Concrete Mix Design ◽  
Compressive Strength Test ◽  
Chloride Attack

Concrete is the main material used in most of structures in the world. The use of high strength and high performance concrete to overcome deterioration due to static and dynamic load and some environmental burden in different situation such as chloride attack, sulphate attack and etc, is increasing worldwide. Achieving to a concrete with a high quality and saving in amount of material used for producing the concrete need a proper mix design method taken into account. DOE method is considered as an effective and substantial method in implementing the concrete mix design. In this paper, specifications and all mix design calculation steps using DOE method in achieving a high strength and high performance concrete for a tall building in a coastal environment based on three concrete cubes specimens produced in the lab, are investigated. The 7 and 14 day compressive strength test were implemented on the concrete cubes. At the end, it concluded that the specified compressive strength (45 N/mm2) can be achieved on the 28th day based on DOE method.

scholarly journals Variasi Abu Ampas Tebu dan Serat Bambu sebagai Bahan Campuran Pembuatan Beton Ramah Lingkungan

2020 ◽  
Vol 4 (2) ◽  
pp. 109-117
Author(s):  
Warsito Warsito ◽  
Anita Rahmawati
Keyword(s):  
Compressive Strength ◽  
Sugarcane Bagasse ◽  
Design Method ◽  
Low Cost ◽  
Waste Product ◽  
American Concrete Institute ◽  
Raw Material ◽  
Mix Design ◽  
Fine Aggregate ◽  
The Times

ABSTRAKBeton merupakan suatu material yang secara umum menjadi kebutuhan masyarakat terhadap fasilitas infrastruktur konstruksi yang semakin meningkat seiring dengan perkembangan zaman, oleh sebab itu pemilihan beton sebagai bahan baku utama konstruksi bangunan sangatlah penting. Beberapa hal yang perlu ditinjau dalam pembuatan beton adalah harganya relatif murah, mudah diperoleh, memiliki kuat tekan tinggi serta mempunyai sifat tahan terhadap faktor kondisi lingkungan. Abu Ampas Tebu (AAT) adalah sisa hasil pembakaran dari ampas tebu. Ampas tebu sendiri merupakan hasil limbah buangan yang berlimpah dari proses pembuatan gula. Tujuan penelitian ini dimaksudkan untuk mengetahui kuat tekan beton yang menggunakan serat bambu dan abu ampas tebu sebagai pengganti agregat halus dengan variasi tertentu yang mencapai 40%. Penelitian ini menggunakan metode kuantitatif eksperimen dan teknik analisa data menggunakan regresi. Variabel yang digunakan dalam penelitian ini adalah variabel bebas yang berupa variasi penggantian sebagian agregat halus menggunakan abu ampas tebu dan serat bambu. Hasil penelitian ini adalah beton dengan perbandingan komposisi campuran yang didapat sebelumnya dan hasil mix design beton normal maut sedang yaitu dengan besar kuat tekan fc’ 14,5 Mpa (K175) sampai dengan fc’17,15 Mpa (K210,6) yang kemudian ditambah dengan bahan AAT sebagai bahan penambah semen dan serat Bambu.Kata Kunci: Abu Ampas Tebu, Beton, Serat Bambu, Agregat ABSTRACTConcrete is a material that generally supports the community's need for construction of infrastructure facilities which is increasing along with the times. Selection of concrete as the main raw material for building construction is very important. There are benefits in making concrete such as low cost, ease to obtain, high compressive strength and resistancy to environmental conditions. Bagasse Ash (AAT) is the residue from the burning of sugarcane bagasse. Sugarcane bagasse itself is an abundant waste product from the sugar making processes. The purpose of this study was to determine the compressive strength of concrete using bamboo fibers and the AAT as a substitute for fine aggregate with certain variations reaching up to 40% with a concrete enhancer chemical aggregate. This research used the American Concrete Institute design method with a value of 0.40 and 0.45 on the concrete age of 28 days. Results found that the samples made were hard concrete with a comparison of the composition of the mixture obtained previously. Results of a normal deadly concrete mix design comprised with a large compressive strength fc '14.5 Mpa (K175) to fc '17, 15 Mpa (K210,6) which was then added to the AAT as aggregates in the cement and Bamboo fiber.Keywords: Bagasse Ash, Concrete, Bamboo, Aggregate

scholarly journals EFFECT FACTORS’ SELECTION AND PREDICTION OF COMPRESSIVE STRENGTH OF SCC USING A HYBRID NETWORK BASED ON GA

2021 ◽  
Vol 30 (2) ◽  
Author(s):  
Wei Liang ◽  
Ming Lin ◽  
Jiangfeng Dong ◽  
Shucheng Yuan
Keyword(s):  
Compressive Strength ◽  
Design Method ◽  
Back Propagation ◽  
Hybrid Networks ◽  
Hybrid Network ◽  
Coefficient Of Determination ◽  
Self Compacting Concrete ◽  
Concrete Production ◽  
Bp Model

Compressive strength is the most important evaluation index for concrete. In order to predict the compressive strength of self-compacting concrete, two kinds of artificial neural networks (ANNs), including the BP (Back-propagation) networks and the hybrid networks DRGA-BP based on GA (Genetic algorithm), were designed and applied in this study. With DRGA-BP, the most representative variables were selected out from many initial inputs to reduce data dimensions and also the weights and thresholds of BP model were optimized. The results showed that the hybrid model presented better prediction accuracy with the R2 (coefficient of determination) of 0.9602, and appeared to well agree with the experimental data and was quite reliable. Finally, a mix ratio design method based on DRGA-BP model was proposed for reducing material waste and saving time in the process of concrete production with continuous adjustment.

scholarly journals Variasi Abu Ampas Tebu dan Serat Bambu sebagai Bahan Campuran Pembuatan Beton Ramah Lingkungan

2020 ◽  
Vol 4 (2) ◽  
pp. 109-117
Author(s):  
Warsito Warsito ◽  
Anita Rahmawati
Keyword(s):  
Compressive Strength ◽  
Sugarcane Bagasse ◽  
Design Method ◽  
Low Cost ◽  
Waste Product ◽  
American Concrete Institute ◽  
Raw Material ◽  
Mix Design ◽  
Fine Aggregate ◽  
The Times

ABSTRAKBeton merupakan suatu material yang secara umum menjadi kebutuhan masyarakat terhadap fasilitas infrastruktur konstruksi yang semakin meningkat seiring dengan perkembangan zaman, oleh sebab itu pemilihan beton sebagai bahan baku utama konstruksi bangunan sangatlah penting. Beberapa hal yang perlu ditinjau dalam pembuatan beton adalah harganya relatif murah, mudah diperoleh, memiliki kuat tekan tinggi serta mempunyai sifat tahan terhadap faktor kondisi lingkungan. Abu Ampas Tebu (AAT) adalah sisa hasil pembakaran dari ampas tebu. Ampas tebu sendiri merupakan hasil limbah buangan yang berlimpah dari proses pembuatan gula. Tujuan penelitian ini dimaksudkan untuk mengetahui kuat tekan beton yang menggunakan serat bambu dan abu ampas tebu sebagai pengganti agregat halus dengan variasi tertentu yang mencapai 40%. Penelitian ini menggunakan metode kuantitatif eksperimen dan teknik analisa data menggunakan regresi. Variabel yang digunakan dalam penelitian ini adalah variabel bebas yang berupa variasi penggantian sebagian agregat halus menggunakan abu ampas tebu dan serat bambu. Hasil penelitian ini adalah beton dengan perbandingan komposisi campuran yang didapat sebelumnya dan hasil mix design beton normal maut sedang yaitu dengan besar kuat tekan fc’ 14,5 Mpa (K175) sampai dengan fc’17,15 Mpa (K210,6) yang kemudian ditambah dengan bahan AAT sebagai bahan penambah semen dan serat Bambu.Kata Kunci: Abu Ampas Tebu, Beton, Serat Bambu, Agregat ABSTRACTConcrete is a material that generally supports the community's need for construction of infrastructure facilities which is increasing along with the times. Selection of concrete as the main raw material for building construction is very important. There are benefits in making concrete such as low cost, ease to obtain, high compressive strength and resistancy to environmental conditions. Bagasse Ash (AAT) is the residue from the burning of sugarcane bagasse. Sugarcane bagasse itself is an abundant waste product from the sugar making processes. The purpose of this study was to determine the compressive strength of concrete using bamboo fibers and the AAT as a substitute for fine aggregate with certain variations reaching up to 40% with a concrete enhancer chemical aggregate. This research used the American Concrete Institute design method with a value of 0.40 and 0.45 on the concrete age of 28 days. Results found that the samples made were hard concrete with a comparison of the composition of the mixture obtained previously. Results of a normal deadly concrete mix design comprised with a large compressive strength fc '14.5 Mpa (K175) to fc '17, 15 Mpa (K210,6) which was then added to the AAT as aggregates in the cement and Bamboo fiber.Keywords: Bagasse Ash, Concrete, Bamboo, Aggregate

scholarly journals Research on a Systematical Design Method for Nearly Zero-Energy Buildings

2019 ◽  
Vol 11 (24) ◽  
pp. 7032 ◽  
Author(s):  
Ji Li ◽  
Wei Xu ◽  
Ping Cui ◽  
Biao Qiao ◽  
Siyang Wu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Architectural Design ◽  
Design Method ◽  
Performance Based Design ◽  
Building Industry ◽  
Heat Sources ◽  
Zero Energy ◽  
Zero Energy Building ◽  
The Impact ◽  
Zero Energy Buildings

As a result of the impact of energy consumption, research on ultra-low energy, nearly zero-energy, and zero energy buildings has been conducted in China. However, the design of the nearly zero-energy building is flexible; the traditional architectural design method is not fully applicable to nearly zero-energy buildings. The paper proposed a performance-based design method based on overall energy consumption and progress for the nearly zero-energy building. The design process of the relevant cases was also analyzed. The factors of cold and heat sources, environment, and renewable energy were combined to make a comprehensive analysis to get the optimal scheme of the nearly zero-energy building in the case. In general, the performance-based design method has a certain guiding significance for the design of nearly zero-energy buildings and certainly promotes the expansion of the nearly zero-energy building industry in China.

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