DOI: 10.1590S1516-14392011005000088 Mix Design of High-performance Concrete Aminul Islam Laskar* National Institute of Technology, Silchar-788010, India Received: July 28, 2008; Revised: August 19, 2011 A mix design procedure for high-performance mixes has been presented in …
Corrections are to be made in the mix design for different zones of sand and maximum size of coarse aggregates. To do this, a reference mix as per IS: 10262-1982 has been considered and rheological parameters of this reference mix were obtained with the present rheometer.
Mix design of high performance is different from that of usual because water-binder ratio is very low and it may contain mineral admixtures which change the pro perties of fresh
Author: Aminul LaskarThe basic mix proportions (without HRWR dosage) of these s were determined based on the British DoE (Department of Environment) mix design method 25. From the trial mixes, a suitable control mix (0% RCA) satisfying the requirements for high workability (slump > 250 mm, slump flow > 500 mm) was decided.
DOI: 10.1590/S1516-14392011005000060 ... Experimental Investigation on the Effects of Recycled Aggregate on Fracture Behavior of Polymer Concrete João Marciano Laredo dos Reis*, Marco Antonio Godoy Jurumenha Theoretical and Applied Mechanics Laboratory – LMTA, ... Optimization of mix design, regarding fracture toughness, was ...
The amount of cement and all powder content varies between 450 and 650 kg/m3. The amount of small particles must prevent the segregation of large aggregate particles and enable their transport to all parts of the formwork 11-15. The level of compaction of the cast mainly depends on …
Feb 05, 2019 · In this study, the design gyration number of the asphalt mixture was obtained by carrying out extensive laboratory testing on the specimens prepared, and by changing various testing parameters including the gyration number, angle of gyration, specimen height, and ram pressure.
Author: Serkan Tapkın, Mustafa KeskinHigh Performance (HPC) has received increased attention in the development of infrastructure Viz., Buildings, Industrial Structures, Hydraulic Structures, Bridges and Highways etc. leading to utilization of large quantity of . This paper presents a comprehensive coverage of High Performance developments in civil engineering field.
Cited by: 61045-1051. doi: 10.1590/s1516-143920130 ... This study focuses on the clarification of the steps concerned with the cold mixture mix design to determine the initial aggregate gradation of the ...
IS 10262 (2009), Recommended Guidelines for Concrete Mix Design, Bureau of Indian Standard, New Delhi, India. IS 12089 (1999), Specification for Granulated Slag for Manufacture of Portland Slag Cement, Bureau of Indian Standard, New Delhi, India.
Mobile batching plant is a production equipment, which can reserve,Cement plant manufacture small mobile portable wet mix batching plant , AJY50 and AJY75 belong to small mobile batching plant.
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Water absorption for each mix has been performed in different size fraction with pyknometer and wire basket methods. The relationship between density, grading and water absorption and its comparison for mixes would be indicating the changes in behaviour of aggregates and future performance of subbase.
Author: Islamshahr Branch, Tehran, London, ZanjanDOI: 10.1590/S1516-14392010000200011. ... Study on Properties of Rice Husk Ash and Its Use as Cement Replacement Material.pdf. ... British mix design method ...
Fourteen colours and their Pantone® numbers were chosen based on the Book of SENAI Mix Design Spring/Summer 2016/2017. The dyeing recipes were obtained by Match Wizard® software (Datacolor 650 SF Plus). The dyeing sequence was executed sequentially from the darkest colour to the lightest.
Author: Jorge Marcos Rosa, Jorge Marcos Rosa, Elias Basile Tambourgi, Rosangela Maria Vanalle, Félix Martin ...Fiber reinforced is a special in which wastes can be used for totally or partially replacement of mix components. For studying the influence of wastes on mechanical properties of cement (green ), different dosages of cement were replaced by fly ash and also glass fiber or polyester fiber were added.
Cited by: 2The mix was design to s tudy the effect of replacement of Coarse aggregate by flake of Polyethylene terephthalate waste. Portland cement mixed with PET waste and w ater using different ...
Winter atmospheric measurements of gaseous lower carbonyl and carboxylic acids were carried out simultaneously (in 1999) at two distinct urban sites located in the city of São Paulo, Brazil. The greater metropolitan area of São Paulo is the largest industrialized region of Latin America and has a highly polluted atmosphere. It has an unconventional mix of vehicle types in that a variety of ...
Cited by: 93The animals had unrestricted access to mineral mix. The basal forage consisted of Tifton 85 ( Cynodon sp.) hay, which had an average crude protein (CP) content of 78.4 g/kg dry matter (DM). The forage was provided ad libitum daily at 0600h and 1800h, allowing approximately 100 g/kg in orts.
Cited by: 9In recent years, the use of recycled plastic aggregate (RPA) as an alternative aggregate material has been considered to lower the environmental influence of both and waste of plastics.
Cited by: 2Because in Tunisia many cannabis smokers mix cannabis with tobacco, tobacco may be a major confounder for these results. Mehra et al. published a systematic review of the impact of marijuana smoking on the development of premalignant lung changes and lung cancer. 19 studies entered into analysis from 186 initially identified. The authors found ...
Cited by: 21Feb 25, 2015 · Mixture design of rice flour, maize starch and wheat starch for optimization of gluten free bread quality Camino M. Mancebo , Cristina Merino , Mario M. Martínez , and Manuel Gómez Food Technology Area, College of Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
Cited by: 24To do this, made with the selected sand were designed using DOE mix design method and test cubes were cast in three batches. Two cubes were cast for each of the sixteen consecutive tests carried out and averages taken for each design grade strength of 10,20,30,40 and 50N/mm2.
Author: Joseph A. Ige, Mukaila A. Anifowose, Samson Olalekan Odeyemi, Suleiman A. Adebara, Mufutau O. Oyelek...Sep 28, 2018 · Abstract. Warm Mix Asphalt (WMA) technologies allow a 20 to 40°C reduction in production temperatures of asphalt mixes. These technologies are often synergistically combined with modified asphalt binders to tackle the increased production temperature requirements with these binders.
Cited by: 2Apr 25, 2018 · From the result, none of the partial replacement met the 28 days strength of the control mix design. The closest with considerable value came at 10% partial replacement. Zareei et al (2017) [Iran] evaluated the durability and mechanical properties of rice husk ash as a partial replacement of cement in high strength containing micro silica.
Dec 20, 2018 · PCR was performed on an ABI 7300 using FastStart Universal SYBR Green Master (ROX) according to the manufacturer’s instructions. The total volume of Quantitative real-time PCR assay was performed in a 20 μL (10 μL of PCR Mix, 0.5 μL of specific primers, 4 μL of cDNA and 5 μL of water).
Author: Peng Huang, Wei Liu, Min Xu, Ruolan Jiang, Liqiong Xia, Peng Wang, Han Li, Zhaoshan Tang, Qiyin Zhen...Concrete is an extremely durable product, but sometimes your job requires a little more than just standard ready mix. From high rises in the city to sidewalks inyour small town, Ozinga offers a performance mix design that is best suited for your specific project. Commercial Concrete Mixing Station_Concrete mixing plant ...
Lutjanus analis (mutton snapper) and Lutjanus jocu (dog snapper) are mesopredator species with extensive geographic distribution in the Atlantic Ocean. Although historically overfished, their genetic diversity, population structuring, and historical demography along the Brazilian coast are unknown. Here, we present genetic data for the hypervariable region 1 (HVR1) of the mtDNA control region ...
Author: Allyson Santos de Souza, Eurico Azevedo Dias Júnior, Manolo Fernandez Perez, Marcelo de Bello Cioffi...Introduction. Several methods of assessing the clinical competence of medical students exist. Traditional methods include short case and long cases and the viva voce examination, all of which have been criticized for lacking structure and standardization, having poor inter-rater reliability, and not minimizing examiner bias. 1 Harden et al 2 proposed the objective structured clinical ...
Author: Anwarul Azim Majumder, Alok Kumar, Kandamaran Krishnamurthy, Nkemcho Ojeh, Oswald Peter Adams, Bidya...Aug 12, 2019 · The optimized mix introduced a workable, durable, resistant, and economical mix design with 7% and 20% of cement replaced with silica fume and copper slag, respectively. This innovative study included simultaneous use of copper slag and silica fume as a replacement for cement.
The new design allows the transfer of the collected material to the lab by removing only that part of the trap where the insects have been captured; the other part remains in its original place.
For characterizing the Mode II fracture energy of crushed stone fine aggregate , an experimental study is carried out on DCN specimens which are cast following the mix design procedure given in I.S:10262-1982 for 0% replacement of fine aggregate, with ordinary Portland cement of 53 grade confirming to I.S:12269-1987 , machine crushed granite metal passing through 20 mm I.S sieve as a …
In this research, two mix series (100%NCA, and 100%RCA) were prepared using four different dosages of GF (0%GF, 0.25%GF, 0.5%GF, and 0.75%GF by volume fraction). Mechanical properties namely compressive strength, splitting tensile strength, and flexural strength of each mixture was evaluated at the age of 28 days.
Effects of white shrimp (Litopenaeus vannamei) and tilapia nilotica (Oreochromis niloticus var. Spring) in monoculture and co-culture systems on water quality variables and production in brackish low-salinity water earthen ponds during rainy and dry seasons
High Performance (HPC) has received increased attention in the development of infrastructure Viz., Buildings, Industrial Structures, Hydraulic Structures, Bridges and Highways etc. leading to utilization of large quantity of . This paper presents a comprehensive coverage of High Performance developments in civil engineering field.
Sep 10, 2018 · Three uniformly germinated seedlings were selected and transplanted to pots (150 mm diameter × 200 mm height) filled with approximately 2.5 kg of UC Mix (the actual weight varied from experiment to experiment by 100–200 g). Square containers were placed below each pot to allow water to collect. 2.2 Experimental design
Structural changes in fly ash geopolymers activated with different sodium hydroxide and silicate concentrations are investigated using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy over a period of 200 days. A strong correlation is found between the concentration of silicate monomer in the activating solution and the position of the main Si−O−T stretching ...
May 20, 2014 · Microstructure properties of waste tire rubber composites: an overview. Authors; ... Utilization of recycled crumb rubber as fine aggregates in mix design. ... Monteiro P (2006) Effect of tire rubber particles on crack propagation in cement paste. Mater Res 9:311–320. doi: 10.1590/S1516-14392006000300011 CrossRef Google Scholar.
Winter atmospheric measurements of gaseous lower carbonyl and carboxylic acids were carried out simultaneously (in 1999) at two distinct urban sites located in the city of São Paulo, Brazil. The greater metropolitan area of São Paulo is the largest industrialized region of Latin America and has a highly polluted atmosphere. It has an unconventional mix of vehicle types in that a variety of ...
Nov 05, 2017 · Mechanical Properties Investigation of Composite Sandwich Panel and Validation of FEM Analysis Szymon Jakubiak, Filip Ćwikła, Witold Rządkowski Abstract. Composite sandwich structures allows for significant mass reduction compared with traditional steel frames used in Formula Student bolides. However, in order to reach a full potential of composite monocoque chassis and ensure …
The online version of this article (doi: 10.1186/s13568-017-0356-7) contains supplementary material, which is available to authorized users. Introduction Feedlot diets have high inclusion of concentrate and low roughage, usually resulting in low ruminal pH that directly affects the digestibility of the fiber, and may also lead to metabolic ...
The rotational stocking system was adopted in the pasture with Brachiaria brizantha cv. Marandu, in a area of 7.7 ha divided into six paddocks of equivalent areas. Thus, two paddocks were used per treatment and per experimental period. To avoid any effects from the pasture, animals from each treatment were rotated every 7 days across the paddocks.
Structure–Property Relations in Rare-Earth Doped Manganite Perovskites: A Review K. Sakthipandi, Aslam Hossain, G. Rajkumar The perovskite with R1−xAxMnO3 (R = rare-earth and A = divalent metals) formula has worldwide attention due to its fascinating electrical and magnetic properties. A-site doped manganite perovskite oxides were broadly investigated based on theoretical and experimental ...
Jul 17, 2002 · doi: 10.1590/s1516-35982009001200018. Masae Sakuma, Hisami Yamanaka-Okumura, Yuko Naniwa, Dai Matsumoto, Megumi Tsunematsu, Hironori Yamamoto, Yutaka Taketani, Eiji Takeda. Dose-Dependent Effects of Barley Cooked with White Rice …
The weight and measurements of the cold carcass of the lambs were not influenced (P > .05) by the replacement maniçoba hay by spineless cactus, but there was a linear increase (P < .05) in the cold carcass yield with increasing spineless cactus in the diet ().The subcutaneous fat thickness of the carcass of the lambs also behaved linearly (P < .05) as a function of replacement maniçoba hay ...
2.1 Experimental design, animals and diets. Eighteen Nellore and 18 Angus young bulls ranging in age from 18 to 22 months and with BW of 381 ± 12 kg were housed in individual pens with individual feeders and automatic waterers. Treatments were arranged as a 2 × 2 factorial (two diets and two breeds).
Mixing volume - 40 liters - 60 liters - 90 liters Cable length 4 m 4 m 4 m Weight with Paddle 5,3 kg 6,2 kg 7,0 kg Article No. Hexafix® 20.400 20.412 20.436 Article No. M 14 20.406 20.418 20.442 07/11 Subject to technical change Mixing – premium class Optimum performance and reliability Perfect ergonomics Reduced noise Attractive design
A proposal for the maximum use of recycled sand in masonry mortar design Natural sand mining from rivers and seashores is causing serious environmental problems in many parts of the world, whereas the fine fraction from recycling waste is underutilized as a construction material.
Jun 11, 2019 · Chronic Chagas disease cardiomyopathy (CCC) is a major cause of heart disease in Latin America and treatment for this condition is unsatisfactory. Here we investigated the effects of BA5, an amide semi-synthetic derivative betulinic acid, in a model of CCC. Mice chronically infected with T. cruzi were treated orally with BA5 (10 or 1 mg/Kg), three times per week, for 2 months. BA5 treatment ...
Dec 01, 2013 · Free Online Library: Use of recycled aggregate in : a review.(Report) by "Journal of Civil Engineering and Management"; Engineering and manufacturing Aggregates (Building materials) Usage Waste management Concrete Chemical properties Mechanical properties Production processes Concretes Recycled materials
Long-term continuous soybean cropping can lead to the aggravation of soil fungal disease. However, the manner in which the fungal community and functional groups of fungi are affected by continuous soybean cropping remains unclear. We investigated the fungal abundance, composition and diversity during soybean rotation (RS), 2-year (SS) and long-term (CS) continuous soybean cropping systems ...
Abstract. This study evaluated the effects of narasin on intake and rumen fermentation characteristics of Bos indicus steers offered a high-forage diet for 140 d. On day 0 of the study, 30 rumen-fistulated Nellore steers [initial body weight (BW) = 281 ± 21 kg] were assigned to 30 individual pens in a randomized complete block design according to their initial BW.
commercial quality mix recipes – elkon ...The production of high quality products requires specific knowledge of the circumstances in which they are ultimately used. This is
Jul 18, 2018 · The mixed ethnicity in Brazil is a result of the mix of different groups, including native indigenous populations, African people brought into Brazil by slavery, and the Portuguese groups that ...
Candida species is implicated in a wide array of clinical infections. Speciation of Candida strains is of prime importance in the epidemiological survey and laboratory diagnosis as there is an upswing of antifungal resistance and changing trends in the antifungal resistance pattern among C. albicans and non albicans Candida. Varied phenotypic methods are available for the identification of ...