موقعك الحالي:صفحة رئيسية>المنتجات
2022year9month2day The Indonesian economy has been resilient while still affected by the global COVID-19 pandemic, according to Volvo CE’s Lambert. “Infrastructure projects were put
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2021year11month22day To make opening an aggregate quarry a successful project, several important criteria must be fulfilled such as: proved quality and quantity of raw material,
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It’s confirmed to Indonesian specification of SNI 7064-2004 [18] . Coarse aggregate was taken from Merapi mountain’s quarry which crushed with the maximum size of 20 mm.
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2023year5month2day Number of quarrying establishments Indonesia 2020, by material. Published by Statista Research Department , May 2, 2023. In 2020, there were around 60.76
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Coarse aggregate refers to aggregate with particles larger than 5 mm in size. Aggregate should be composed of particles that are strong enough and resistant to exposure and
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2021year1month1day Several researchers agree on the usage of coconut shell as coarse aggregate in concrete. They investigated the behaviour and characteristic of this bio
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2022year4month23day Abstract. In this study, effects of crushed stone waste from Katunun's quarry as fine aggregate on mortar and concrete properties will be examined. Samples
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2015year9month1day In this study, artificial coarse aggregates are prepared by a cold bonding technique. The waste materials, namely, fly ash and quarry dust, are used for the
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2023year11month6day In this study, coarse aggregates with a grade of 4.75–50 mm were used, including gravel round, and crushed as coarse NA and crushed concrete rubble as
Read More2015year9month1day Use of artificial coarse aggregate in the production of concrete is a sustainable construction practice. Cold-bond pelletization is one of the popular methods
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Seashells have been used as partial replacement for fine or coarse aggregate of concrete in various percentages, ... In 2007, Indonesia generated about 64,641 tons of pearl oysters, 420 tons of green mussels, and 205 tons of blood cockles, respectively (Ministry of Marine and Fisheries ...
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2022year1month1day The concrete containing polished granite waste, substituted up to 20% of natural coarse aggregate could be recommended for all applications and the substitution from 20% to 40% could be ...
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2020year3month11day To meet the overgrowing demand, the number and production capacity of quarry sites, coarse aggregate, and sand deposits are aggressively increasing. Admasu [ 7 ] (2015) reported that based on the
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2023year11month6day In this study, coarse aggregates with a grade of 4.75–50 mm were used, including gravel round, and crushed as coarse NA and crushed concrete rubble as coarse RCA. Two types of fine aggregates were used: fine NA from gravel and sand quarry and fine RCA, which were crushed concrete debris passing through a 4.75 mm sieve.
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2021year11month22day Location of an aggregate quarry is generally required close to the site of consumption (or to the market area), making one of typical features of this low cost ex-work material. ... Ganapati N, Adiseshu PS (2013) Influence of coarse aggregate shape factors on bituminous mixtures. Int J Eng Res Applic 1(4):2013–2024. Google Scholar
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2016year1month5day Table 1 The physical properties of the used coarse aggregate industry in Malaysia quarry industry”. 2.2 Yong PC, (2009), “Utilization of recycled aggregate asConcrete mix design and testing coarse aggregate in concrete”, Concrete mix design of Grade 30 was prepared according to BS 1881 [17]. Two types of mix have been used in this
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2021year1month1day Hence, various visible attacks on concrete can be seen. Concrete prepared with 10% coconut shell aggregate replaced with coarse aggregate in mix design of M 25 and M 30, showing a pH value of 12 over the other concrete [40]. Some defects arise in concrete after times are acid attacks, sulphate attacks, carbonation, corrosion and also alakali ...
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This study is an attempt to investigate the suitability of quarry dust as a partial replacement of coarse aggregates in concrete making. Samples of concrete cubes were made with varying proportions of quarry dust replacing the coarse aggregate. It was foreseen that the utilization of quarry dusts as partial replacement of coarse aggregates in concrete will be
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2021year12month15day The fine aggregate fills the space between the coarse aggregate and river sand which passes through a 4.75 mm sieve taken. The code used for natural river sand to cast concrete specimens was IS 383:2016 . 2.3 Quarry Dust. The quarry dust is a waste product formed after crushing the granite stones.
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2023year9month25day it is observed that replacing coarse aggregate with 15% of Bamboo and fine aggregate by15 % of Quarry dust gave a satisfactory result when compared with conventional concrete for 7 days and 28 days.
Read More60117, Surabaya, INDONESIA 2Department of Civil Engineering, Faculty of Civil, Environment and Geo Engineering, Institut ... Coarse aggregate refers to aggregate with particles larger than 5 mm in size. Aggregate should be composed ... comes from the same quarry to ensure the consistent properties and all materials clearly investigated to
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2022year2month1day The combined gradation (stated as CGrad) in Tables 3 and 4 are divided into two parts: the combined gradation with correct proportions (CGrad-4 to CGrad-7) and the rest are the combined gradation with incorrect proportions (CGrad-1 to CGrad-3, and CGrad-8 to CGrad-10). The CGrads on the left of the table are the ones with the most
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In order to study the influence of coarse aggregate size on the mechanical properties of concrete,the quasi-static compression and splitting tensile experiments of M40,M80 and M110 mortars and concrete with different coarse aggregate sizes were conducted by MTS. The quasi-static compressive stress-strain curve and splitting stress-time curve of each
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2017year1month13day 383 –1970 the physical properties of fine aggregate as shown in Table 2. 3.1.3 Coarse Aggregate The coarse aggregate used was conforming to IS: 383 – 1970. In this study the crushed angular coarse aggregates were used, which was bought from the nearby quarry. Aggregates of 20 mm were chosen for the
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2020year12month30day The use of OPS reduces the requirements of coarse aggregate produced from natural resources and improves sustainability due to the reduced pollution. Researchers have reported that the employment of OPS as a LWA in the production of structural concrete has good density and compressive strength (1,800–1,900 kg/m 3 and
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it is observed that replacing coarse aggregate with 15% of Bamboo and fine aggregate by15 % of Quarry dust gave a satisfactory result when compared with conventional concrete for 7 days and 28 days.
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2020year12month30day Replacement of fine aggregate weight by 10%, 15%, 20% with Plastic fine (PF) aggregate and for each replacement of fine aggregate 15%, 20%, 25% of coarse aggregate replacement also conducted with ...
Read More2020year6month1day relevant IS code was used [10]. Coarse Aggregate (CA) of crushed stone from local quarry with maximum size of 12mm was used and replacement material for this coarse aggregate was recycled aggregates which was obtained from the laboratory tested specimens but should maintain the size as same as to the coarse aggregate about
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2019year7month16day The mechanical stabilization with coarse aggregate or stone dust is also found to be more economical as compared to replacement of the soil with good soil of desired CBR value by more than 50%. ... The quarry dust was used in proportion of 10%, 20%, 30%, 40% and 50% by weight of dry soil.
Read More2023year6month17day Quarry dust's potential as a sand substitute material demonstrates that its mechanical and elastic properties have both improved. By replacing fine aggregate with quarry dust in a ratio of 60:40, as done by Hmaid Mir, the compressive strength was maximized. According to Felekoglu et al., adding quarry waste at the same
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
الاتصال: 0371-86549132.