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The Skullcandy Crusher Wireless isn't going to be the best-sounding headphones you've ever heard, but for around $100 it offers a decent build quality and insanely long battery life. Release date. November 2016. Price. $99 USD. Dimensions. 17.8 x 17.5 x 8.9 cm. Weight. 278g.
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S.NO DAYS RCPT value Penetrability 1 28 1867 Low 2 180 1702 Low Table 8: Comparison of RCPT values for PPC for 28 & 180 days Graph 3: Comparison of RCPT values for PPC for 28 & 180 ... Graph 5: Comparison of RCPT values for 28 days for OPC, PPC & PSC . Durability Studies (Chloride ION Permeability) of Concrete by Using Different Types of Cements
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This paper investigates the durability of concrete with PF using rapid chloride penetration test (RCPT). RCPT determines the electrical conductance of concrete which indicates its resistance to penetration of chloride ions. In this study, RCPT was carried out on 28, 56 and 77-days on concrete specimens with 10, 20 and 30% PF replacement of cement.
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rapid chloride permeability test (RCPT), 193. ravelling-type failures, 282-283. raw materials defects in masonry, 403-413 glass production, 793-794 recycling, 421, 422 see also individual materials. RC see reinforced concrete. RCPT (rapid chloride permeability test), 193 'reaction to fire' properties, 887. reaction wood, 711-712
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In order to assess the resistance of the road concrete to the penetration of the chloride ions, we used the rapid test RCPT in compliance with ASTM C1202. But, in order to increase the reliability of the rapid test of assessing the resistance of chloride ions' permeability through measurements of the electrical conductivity, after finishing the RCPT test, we have also measured the depth ...
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American University of Beirut. CIVE. CIVE 628
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Standardized testing procedures are in ASTM C 1202. The RCPT is performed by formalities the quantity of electric supply that passes through a sample 50 mm thick by 100 mm in dia in 6 hours using the apparatus and the cell arrangement is shown in Fig - 2 and Fig - 4 shows the experimental setup for RCPT and Fig - 3 concrete discs.
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The RCPT specimens and RCPT test setup as shown in Fig.2.10 and 2.11. Q=900 (I0+2I30+2I60+..+2I300+2I330+2I360) Where, Q Charge passed (coulombs) I0 Current (amperes) immediately after voltage is applied, It Current (amperes) at t min after voltage is applied, Qs = Q × (95/x)2, Where, Qs Charge passed (coulombs) through a100 mm diameter specimen,
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The table above still provides a quick comparison between the two standards, where some interesting inconsistencies exist, for example the .444 Marlin, .405 Winchester, .223 Rem, and 8 Mauser. Conversion Formulas. No accurate conversion between crusher and true pressure exists, but approximations can be made.
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On addition of Alccofine in OPC system, RCPT value decreases, this is due to (1) proper particle size distribution resulting in lower permeability. (2) addition of alumina decreases RCPT value because alumina reacts with chlorine preferentially to calcium (Fidder reaction).
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Apr 24, 2021The same behavior was observed for REF 2, where the RCPT value appeared to be the highest of all, surpassing the rest of mixtures by a significant difference (25% higher than the second highest value, i.e., that of RFC25 (0.5)). Its porosity value, however, was approximately 20% lower than the second lowest (i.e., RTC50 (0.5)).
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The purpose of the work reported in this paper is to assess the performance of recycled ultra-high durability concrete (R-UHDC), produced using different fractions of recycled aggregate obtained from crushed ultra-high durability concrete (UHDC), as a substitute for the natural aggregate. Four different recycled ultra-high durability concrete (R-UHDC) mixes were designed and manufactured with ...
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Much has been said about network throughput, and the comparison between ENA and SR-IOV in the AWS Cloud, and comparisons to other Cloud environments. 100 Gb/s now sets a new high bar that other vendors are yet to reach. While its wonderful to have that level of throughput, its also worth noting that scale-out is still sometimes a good idea. 100 ...
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Durability performance was investigated by five different methods in this study. The methods used were rapid chloride penetration test (RCPT), chloride conductivity test, water sorptivity test, and Torrent air permeability test. The results from this study show that use of SCBA in concrete significantly enhances its durability performance.
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The effect of the blast furnace slag on the RCPT results was investigated and correlated with porosity trends, carbonatation layer depth, and with the compression strength values, by comparison with the level of results obtained on concrete mixtures made with conventional materials. The measurement of the migrated chlorine front in the concrete ...
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9. Conduct the Rapid Chloride Penetration Test (RCPT) and Water penetration test for all three slabs A, B, C. 10. Compare the results of three slabs A, B, C. IV. DATA ANALYSIS Following are the test conducted on slabs A, B, C during testing purpose to get the result. 1.) Cube Test 2.) Ultrasonic Pulse Velocity (USPV) 3.) Core test 4.)
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Many people retold Sun's motto some years ago: "Network is the computer." And suddenly, Google, with its rich "lab" of web apps, becomes the most threatening enemy of Microsoft. For security reason, browsers, and hence web apps, cannot access to your local files. Some say this is a critical limitation of web apps.
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gives the optimum results. Table shows the RCPT values have decreased with testing age. From the results we conclude that low water/cement ratio and pozzolans affects the RCPT values. Table 3: Test Results of RCPT for difference mixes. Mix Mix Rapid Chloride Permeability Value(Coulombs) 28 Daysno 56 Days 90 Days 180 Days 2120100% OPC 1 3120 2845
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RIDDHESH STONE CRUSHER LLP is a Limited Liability Partnership (LLP) firm. It is registered with Registrar of Companies, Mumbai on Feb 21, 2020. Current Status of Riddhesh Stone Crusher Llp is Active. Total Obligation of Contribution of the LLP is ₹ 51,00,000 (Fiftyone Lakh Indian Rupees).
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Using washed sand not only increases the quality of the mortar, but also significantly reduces costs as you need substantially more plaster sand than you would crusher fines to obtain the same quantity of mortar. Typically, it takes 34% less CDE sand than VSI crusher fines to mix good quality concrete.
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• The recalculated value is adopted if the two values differ by more than 18% for tests on 40 batches or more than 11% for tests on100 batchesormore than 5% for tests on500 batches. CONTROL CHANGE IN THE CURRENT MARGIN • In the new JKR Specification, validityof the current margin
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RCPT. Table 2 represents the rating of concrete as per ASJMC 1209-94. Fig. 3: Cast specimen Fig. 4: Preparation of specimen to the cells of RCPT Fig. 5: RCPT value for different grade at 365 days Table 2: RCPT ratings (as per ASTM C1202-94) Charge passed (coulombs) Chloride ion penetrability >4000 High 2000-4000 Moderate 1000-2000 Low
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The median pore diameter was correlated to the 90 days RCPT and electrical resistivity values as shown in Figure 11. The median pore diameter correlates well with the durability test results. The correlation coefficient (R 2) is 0.9517 and 0.7977 for the median pore diameter relationship with the RCPT and the electrical resistivity respectively.
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A crusher of these dimensions will break 40 tons per hour to 2½-in. size with a power consumption of 30 h.p. On the other hand, a 14-in. gyratory crusher, working as it should at full capacity, will crush 100 tons per hour to the same size with a power consumption of 70 h.p. ; at 40 tons per hour, it would still require about 50 h.p.
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The RCPT is a standard test adopted by AASHTO and ASTM and is known as AASHTO T 277 "Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration." Twelve coarse aggregate types, commonly used in Mn/DOT highway construction projects, were
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Sr.No. Characteristics Experimental Value Value as specified by IS : 12269-1987 1. Standard Consistency 29 -- 2. Fineness of cement as ... 6% and 8% of metakaolin respectively in comparison to control . ISSN: 2319-8753 ... RCPT After 28 Days Types of concrete MK-4% MK-6% MK-8%
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Type of Primary jaw crushers:VSI Crushers & Sand Making Machine,Single toggle jaw crusher,Stone jaw crusher,Primary Mobile Crushers,Primary Mobile Crushers ... Crusher - Wikipedia, the free encyclopedia
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The RCPT test has been standardized in ASTM and AASHTO and is widely used globally (Stanish et al. 1997 ). In this method, the measured quantity is the total amount of electric charge passed through saturated concrete samples of 100 mm diameter and 50 cm thickness within a period of 6 h under 60 V potential difference.
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attack test and Rapid Chloride Permeability Test(RCPT).The experimental results revealed that the M-Sand replaced ... calculated experimentally and its value is1862 Kg/m3and ... Sieve analysis comparison of two sand Sieve size River sand % passing M-sand % passing 4.75mm 100.00 100.00 2.36mm 95.6 90.70 1.18mm 86.00 66.20 0.6mm 56.20 39.80
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Feb 8, 2021The test results were compared to determine the effect of RCA replacement ratios on the RCPT values of RCA concretes, as shown in Figure 15. In Figure 15a, compared to the RCPT value of the CRP-a concrete specimen, which is made with 25% RCA replacement ratio, that of the CRP-b concrete specimen with 50% RCA replacement ratio increased by 11% ...
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An increase in temperature raises the conductivity of the pore fluid and raises the measured RCPT value. One suggestion(4) has been to multiply the 30-minute reading by 12 to get a six-hour RCPT value that is unaffected by this heating. This doesn't affect values less than 1500-2000 coulombs significantly, but corrects the heating effect on ...
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from 800C In RCPT the permeability of chloride was very low in all concrete from CHEMISTRY 101 at Yelm High School 12
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Routers compare metrics to determine optimal routes, and these metrics differ depending on the design of the routing algorithm used. A variety of common metrics will be introduced and described later in this chapter. Routers communicate with one another and maintain their routing tables through the transmission of a variety of messages.
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