泰勒教授给你讲水灰比

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泰勒教授给你讲水灰比

2023-05-08 08:26| 来源: 网络整理| 查看: 265

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水灰比(w/cm)被广泛认为是混凝土中最重要的参数,但目前还没有确立的测量方法。这段视频介绍了一种实用工具——菲尼克斯,可用于实验室或现场,在15分钟内测量水灰比。该工具还可用于测量骨料的含水量。视频介绍了菲尼克斯的使用、操作步骤,并展示了该方法的价值。

https://www.youtube.com/watch?v=TfvqwXwtxiM

有很多读者让小编将视频的讲话翻译出来,谁句实话,小编的外文出了德语(常德德语)厉害一点,一塔都不咋的,因此翻译起来会很费劲,特别是有时是一些印度,日本等其他演讲者说英语,口音很重,小编就更加为难。不搞好在现在科技愈来愈厉害。小编利用AI将这篇视频全程翻译出来了,希望搞研究的朋友能够喜欢。如果您觉得有用,别忘了给小编在文末打赏!

did you know the most important 0:01 parameter in concrete cannot be measured 0:03 and did you know that we've known this 0:05 parameter was critical for more than 100 0:07 years well today I'm going to show you 0:09 some research that we've done at 0:10 Oklahoma State and a new tool that we've 0:13 developed to help you measure this 0:16 important parameter my name is Tyler lay 0:18 I'm a concrete freak and I bring 0:20 solutions to you my concrete Maniacs 0:23 what is the water to cement ratio well 0:26 it happens to be the mass of the water 0:28 divided by the mass of the cementitious 0:30 material that's the cement plus any scms 0:33 that are inside your concrete mixture 0:35 happens to be the most most important 0:37 indicator of the quality of concrete and 0:39 we have no way to measure it so why is 0:42 the water spent ratio so important well 0:44 it determines your strength your 0:46 durability and the consistency of your 0:48 concrete here are some pictures I've got 0:51 two concretes one on the left and one on 0:53 the right and they have different water 0:55 cement ratios the left it's a 0.40 the 0:57 right is a 0.50 these little gray dots 1:00 are cement grains floating around in 1:01 water there's more cement grains per 1:05 water on the left than there is on the 1:07 right there's higher concentration of 1:09 cement grains on the left than there is 1:11 on the right it would be amazing if we 1:14 could just look in and see this with our 1:16 own eyes like Kool-Aid right yeah yeah 1:18 you can tell instantly if Kool-Aid has 1:20 been raid right or not because you can 1:22 tell by the color mom no you added too 1:25 much water to the Kool-Aid we don't want 1:28 that well why does this matter well once 1:32 concrete starts to hydrate it forms 1:35 these little hydrate products around 1:36 each one of these particles then as they 1:39 join together we get more Bonds on the 1:41 left than we do on the right why does 1:43 that matter when you go to load

你知道混凝土中最重要的参数是无法测量的吗?你知道我们已经知道这个参数至关重要已经超过100年了吗?今天,我将向你展示我们在Oklahoma State所做的一些研究,以及我们开发的一种新工具,帮助你测量这个重要的参数。我的名字是Tyler Lay,我是一个混凝土狂热者,我为你们这些混凝土狂热者带来解决方案。那么水灰比是什么呢?它恰好是水的质量除以胶凝材料的质量,即水泥加上混凝土混合物中的任何矿物掺合料。它恰好是混凝土质量的最重要指标,而我们无法测量它。那么为什么水灰比如此重要呢?它决定了你的强度、耐久性和混凝土的一致性。这里有一些图片,我有两种混凝土,一种在左边,一种在右边,它们有不同的水灰比。左边是0.40,右边是0.50。这些小灰点是水中漂浮的水泥颗粒。左边的水泥颗粒比右边多。左边的水泥颗粒浓度比右边高。如果我们能够像看酷爱一样用自己的眼睛看到这一点就太棒了,对吧?是啊,你可以立刻告诉酷爱是否被抢了,因为你可以通过颜色看出来。妈妈,不,你给酷爱加了太多水,我们不想要那样。那么为什么这很重要呢?当混凝土开始水化时,它会在每一个颗粒周围形成这些小水化产物。然后当它们结合在一起时,我们在左边得到的键比右边多。为什么这很重要呢?当你去加载时…

you have water trying to penetrate 1:52 inside the concrete it cannot penetrate 1:55 on the left and it can on the right so 1:58 how in the world do we measure the water 2:00 cement ratio we don't it's on batch 2:04 tickets it's in specifications but we 2:07 don't measure it because there's not a 2:09 good way to we instead measure other 2:11 things that we say are indicators to the 2:13 water cement ratio one of them is the 2:15 slump test this is where you take a cone 2:17 you fill it up with concrete in a in a 2:20 consistent manner you pull that cone up 2:23 slowly you let the concrete fall you 2:25 flip it over you measure with a ruler 2:28 how far it fell and that's supposed to 2:30 be an indicator of how much water is in 2:33 the concrete the slot measures 2:34 consistency it does not measure anything 2:37 to do with water to cement ratio but 2:39 people have been rejecting concrete for 2:42 years because they say the slump is too 2:44 high and that's because of water it's 2:46 not it's because there's a lot of other 2:47 things water could be but there's a lot 2:50 of the things that contribute to the 2:51 slump now what else is there well some 2:54 people do these things called strength 2:55 test where they make cylinders where 2:57 they fill them up in a consistent manner 2:59 there they are dumping them in they 3:01 strike them off they let them Harden 3:03 they demold them like this then they 3:06 break them in a machine like this but we 3:09 have to wait 3:10 28 days at least most specifications 3:13 require 28 days before they will say 3:16 where that concrete is good or not so 3:18 you have to just sit around and wait the 3:19 entire time in between to see and wonder 3:22 is it right or is it not there are lots 3:25 and lots of things that impact strength 3:26 water is one of them but there's so many 3:28 more and the biggest thing on impact 3:30 strength is how these cylinders are 3:33 handled right how they're treated like 3:35 this you don't want t

你有水试图渗透到混凝土里面,它不能渗透到左边,但可以渗透到右边。那么我们怎么测量水灰比呢?我们不测量。它在批次单上,在规范中,但我们不测量,因为没有好的方法。我们反而测量其他我们说是水灰比的指标的东西。其中之一是坍落度试验。这是你拿一个锥体,用一种一致的方式把它装满混凝土,慢慢地把锥体拉起来,让混凝土掉下来,翻过来,用直尺测量它掉下来的距离,这应该是一个指示混凝土中水含量的指标。坍落度测量一致性,它与水灰比无关。但多年来人们一直拒绝混凝土,因为他们说坍落度太高了,那是因为水。不是的,因为还有很多其他东西。水可能是其中之一,但还有很多其他东西影响坍落度。那么还有什么呢?有些人做这些叫做强度测试的东西,他们制作圆柱体,在一致的方式下填充它们,他们倒入它们,用铲子铲平它们,让它们硬化,像这样脱模它们,然后在这样的机器中打碎它们。但我们必须等待至少28天。大多数规范要求28天才会说混凝土是否合格。所以你必须在中间坐着等待整个时间,看着并想着它是否正确。有很多很多影响强度的东西。水是其中之一,但还有更多。影响强度最大的事情是这些圆柱体如何处理。对吧?它们被如何对待就像这样你不想要t

them on the ground you think that's 3:39 going to be good for your concrete 3:40 cylinders well if we just leave them out 3:42 without a cap on ah drives me crazy or 3:45 we leave them out in the snow do you 3:47 think that's going to affect the 3:48 strength sure it does 3:51 why is this a big deal well concrete is 3:54 being rejected incorrectly it's getting 3:57 a bad name and it shouldn't we're 3:59 waiting a month to know if our 4:00 concrete's right or not I think we can 4:02 learn a lot faster than that people are 4:05 more are using more and more cement in 4:07 their concrete as a safety Factor 4:09 against some of these issues this what 4:12 does this do this increase the costs 4:14 increase the carbon footprint it's bad 4:18 we don't want it we need to address this 4:20 I know this is sad right 4:23 what if we could measure the water 4:25 cement ratio and fresh concrete and 4:28 we're going to try to do that today with 4:29 a test called The Phoenix 4:32 and how does this test work how does the 4:35 Phoenix work you need a batch ticket you 4:38 need to know the batch weights you need 4:39 the specific gravity of your Aggregate 4:41 and the absorption of your aggregate 4:43 those are widely known numbers you can't 4:45 do concrete mixtures without them number 4:48 two you need going to make and weigh a 4:51 six inch by four inch cylinder in a 4:54 standard manner you weigh it and then 4:56 you dump it in this pan and you smooth 4:58 it out and then it goes inside the 5:02 Phoenix yes the 3x there's the oven 5:05 there is going in we put a lid on it in 5:07 case in the Aggregates pop and then yeah 5:11 you take it out after 15 minutes and 5:14 everything is what is is dry so you're 5:17 going to compare the weight of the pan 5:18 before it went in and with the wet 5:21 concrete in it to the weight of the pan 5:23 after it has been cooked and the 5:25 difference is the water that you've 5:27 cooked out what am I talking about we 5:30 started out the test all

你把它们扔在地上,你认为这对你的混凝土圆柱体有好处吗?如果我们只是把它们放在外面,不加盖子,啊,让我发疯,或者我们把它们放在雪地里,你认为这会影响强度吗?当然会。为什么这很重要呢?因为混凝土被错误地拒绝了,它得到了一个坏名声,而不应该这样。我们等了一个月才知道我们的混凝土是否正确,我认为我们可以学得更快。人们越来越多地在混凝土中使用水泥作为安全因素来应对这些问题。这会增加成本,增加碳足迹,这很糟糕。我们不想要它,我们需要解决这个问题。我知道这很悲伤,对吧?如果我们能够测量新鲜混凝土中的水灰比呢?今天我们将用一种叫做“凤凰”的测试来尝试做到这一点。那么这个测试是如何工作的呢?凤凰是如何工作的呢?你需要一个批次单,你需要知道批次重量,你需要知道骨料的比重和骨料的吸水率。这些都是众所周知的数字,没有它们你就不能做混凝土混合物。第二步,你需要用标准方法制作并称量一个6英寸乘4英寸的圆柱体。你称量它,然后把它倒入这个锅里,把它抹平,然后放进凤凰里。是的,3倍那里是烤箱,在那里进去,我们盖上盖子以防骨料弹出来,然后是的,在15分钟后取出来,一切都干了。所以你要比较锅进去之前和湿混凝土在里面时的重量与锅煮过后的重量之间的差异就是你煮出来的水。我在说什么呢?我们开始测试所有

n there and the Phoenix drives all the 5:34 water out of the concrete takes about 15 5:36 minutes to do that we would take out all 5:39 the water from the paste and also the 5:42 aggregate so we can calculate how much 5:45 water was inside the aggregate or would 5:48 be absorbed in the Aggregate and then 5:49 how much water would be left for 5:51 hydration and that's the water that we 5:53 care about and we adjust for the air 5:55 content of the mixture by weighing the 5:57 air content or by using that unit weight 5:59 of that cylinder I showed you before to 6:02 dial in the mix and correct for the air 6:04 content this sounds crazy complicated 6:06 right well there's an app that does all 6:08 this for you that comes with the Phoenix 6:10 and you can use it wherever you want to 6:12 run it note this test the Phoenix it 6:15 measures the water in the fresh concrete 6:17 and we assume and will calculate the 6:20 water cement ratio assuming that all the 6:23 cementitious content is batched 6:24 correctly it should be it's the most 6:26 expensive ingredient so it should be 6:29 batched correctly we just assume it is 6:31 so how in the world can we test this 6:33 well we're going to make mixtures in the 6:36 lab where we carefully control the 6:37 weights of everything and the moistures 6:39 and then we're going to measure it with 6:41 the Phoenix so we have an ideal weight 6:44 ideal water cement ratio than we have 6:46 the Phoenix measured water cement ratio 6:49 and we compare them we did this for a 6:51 ton of different Aggregates different 6:52 specific gravities different absorptions 6:54 different water cement ratios different 6:56 paste contents and the data looks like 6:58 this on the batch this is what we think 7:00 is in the concrete on the x-axis this is 7:03 what we measured in the concrete on the 7:05 y-axis and this perfect diagonal line 7:08 here would be line of equality perfect 7:10 agreement and these are plus or minus 7:13 0.02 that is about the varia

然后凤凰把所有的水从混凝土中驱出来,大约需要15分钟。我们会把所有的水从浆料和骨料中取出来,这样我们就可以计算骨料中有多少水或者骨料会吸收多少水,然后剩下多少水用于水化,这就是我们关心的水。我们通过称量混合物的空气含量或者使用我之前给你们看过的那个圆柱体的单位重量来调整混合物并校正空气含量。这听起来很复杂,对吧?好吧,有一个应用程序可以为你完成所有这些,它随凤凰一起提供,你可以在任何地方运行它。注意,这个测试凤凰测量新鲜混凝土中的水,并且我们假设并计算水灰比,假设所有的胶凝材料都正确配比。它应该是这样的,它是最昂贵的成分,所以它应该正确配比,我们只是假设它是正确的。那么我们怎么测试呢?我们将在实验室里制作混合物,在那里我们仔细控制一切的重量和湿度,然后用凤凰测量它。所以我们有一个理想的重量,理想的水灰比,然后我们有凤凰测量的水灰比,并进行比较。我们对大量不同的骨料、不同的比重、不同的吸收率、不同的水灰比、不同的浆料含量进行了这样的测试,数据看起来像这样:在批次上,这是我们认为混凝土中含有的东西,在x轴上,这是我们在混凝土中测量到的东西,在y轴上。这条完美对角线就是平等线,完美一致。而这些是加或减0.02,大约是变异

we go on the x-axis this is what the 8:25 batch ticket thought the water cement 8:27 ratio was here is the measured water 8:29 cement ratio this would be perfect 8:31 agreement the dash line and again this 8:33 is plus or minus 0.02 and what we did is 8:36 we took a concrete truck with a known 8:38 concrete mixture measured it with the 8:40 Phoenix added exactly 0.04 water cement 8:43 ratio to it we weighed out the water 8:45 dumped it in mixed it up got another 8:47 sample measured it again measured it 8:50 again measured it again this we took 8:52 eight trucks did each truck four times 8:55 turns it into 32 different tests and 8:57 look look look look look 88 of the data 8:59 was within .01 water cement race show 9:01 and 100 of the data was within 0.02 and 9:05 look at this coefficient variation again 9:06 three percent again that's way more 9:10 accurate than a concrete cylinder 9:11 machine so the Phoenix can measure the 9:13 water cement ratio within 0.01 in 15 9:16 minutes in fresh Concrete in the lab or 9:19 the field it can measure the moisture 9:21 contents of your Aggregates within five 9:23 minutes if you want to do cook-offs so 9:25 if you are a specifier or an owner why 9:28 would you care about the Phoenix well 9:30 number one you can verify your water 9:32 cement ratio is correct while the 9:34 concrete is still wet before it's been 9:37 dumped out how amazing is that you can 9:39 drop your slump specifications they're 9:41 not helping you you don't need them this 9:44 is a much much much better approach you 9:46 can reduce the importance of strength 9:48 now I didn't say stop testing for 9:50 strength I just means it's not as 9:52 important you don't have to wait 28 days 9:54 you could decrease some strength 9:56 measurements because you know you're 9:58 going to get strength if you get air 9:59 content and your water cement ratio 10:01 correctly in your fresh concrete and you 10:03 will decrease your cost and improve your 10:06 sustainability of yo

我们在x轴上继续,这是批次单认为的水灰比,这是测量到的水灰比,这将是完美的一致性,虚线,而且这又是加或减0.02。我们做的是拿一辆装有已知混凝土混合物的混凝土车,用凤凰测量它,精确地加入0.04水灰比,我们称量出水,倒入混合物中,搅拌起来,再取一个样本,再测量一次,再测量一次。我们拿了8辆卡车,每辆卡车做了4次,变成了32个不同的测试。看看看看看看88%的数据在0.01水灰比范围内,100%的数据在0.02范围内。再看看这个变异系数,又是3%。那又比混凝土圆柱体机器精确得多。所以凤凰能够在15分钟内测量新鲜混凝土中的水灰比,在实验室或现场都可以。它可以在5分钟内测量你的骨料的含水率,如果你想做烹饪测试。所以如果你是一个规定者或业主,为什么你会关心凤凰呢?首先,你可以在混凝土仍然湿润时,在它被倒出来之前验证你的水灰比是否正确。多么神奇啊!你可以降低你的坍落度规范,它们对你没有帮助,你不需要它们。这是一个更好、更好、更好的方法。你可以降低强度的重要性。我并不是说停止测试强度,我只是说它不那么重要了。你不必等28天。你可以减少一些强度测量,因为你知道如果你在新鲜混凝土中正确地得到空气含量和水灰比,你就会得到强度。而且你将降低成本并提高yo

you won't have the over designs why 10:10 would a concrete producer be interested 10:12 in the concrete Phoenix well number one 10:14 you can prove your concrete meat 10:17 specification immediately right away 10:19 that's totally awesome to know that 10:22 something is great and meet 10:23 specification number two you can stop 10:26 being rejected for slump because we 10:28 shouldn't have to be turning concrete 10:30 away for slump if we know the water is 10:32 correct we can stop being penalized for 10:35 cylinder handling if you can show them 10:36 that you got the water cement ratio and 10:40 it was correct I don't see why they can 10:42 get you in trouble I know they may try 10:44 but I think you got a lot to stand on 10:46 there you can start reducing your over 10:48 design of your concrete mixtures reduce 10:50 the cement content if you're a 10:52 contractor why in the world would you be 10:55 interested in the Phoenix number one you 10:57 can get consistent concrete on a lot of 10:59 jobs I mean like floors something like 11:02 we're finishing and flatness is a really 11:04 really big deal you must have consistent 11:07 concrete here's a way to dial it in and 11:09 get it this means you don't have to 11:10 tweak the concrete it on site you can 11:13 work with your producer to get things 11:14 dialed in the trucks show up and you can 11:16 start using them and you would know 11:18 you're getting concrete that meets the 11:20 specification immediately now it's got 11:22 to make you feel good on the inside 11:23 you'll be in increasing your 11:25 productivity increasing your quality 11:28 this is amazing and awesome game changer 11:31 baby who's using the Phoenix right now 11:34 Department of transportations have them 11:35 are using them contractors have them or 11:38 using them ready mix and testing Labs as 11:41 technology is out there getting out 11:43 there be part of the team of Phoenix's 11:46 so where can you find out more you can 11:48 go to concrete

你不会有过度设计。为什么混凝土生产商会对混凝土凤凰感兴趣呢?首先,你可以立刻证明你的混凝土符合规范。立刻知道某件事情是伟大的并符合规范是非常棒的。其次,你可以停止因为坍落度而被拒绝。如果我们知道水是正确的,我们就不应该因为坍落度而拒绝混凝土。你可以停止因为圆柱体处理而受到惩罚。如果你能向他们展示你得到了水灰比,并且它是正确的,我不明白为什么他们能让你陷入困境。我知道他们可能会尝试,但我认为你有很多立场。你可以开始减少你的混凝土混合物的过度设计,减少水泥含量。如果你是一个承包商,为什么你会对凤凰感兴趣呢?首先,你可以在很多工作中获得一致的混凝土。我的意思是像地板这样的东西,我们正在完成和平整度是一个非常非常大的问题,你必须有一致的混凝土。这里有一种方法来调整它并获得它。这意味着你不必在现场调整混凝土,你可以与生产商合作,调整好卡车到达后就可以开始使用它们,并且你会知道你得到的混凝土立刻符合规范。现在这一定会让你内心感觉良好,提高生产力,提高质量,这太神奇了,改变游戏规则的宝贝!现在谁在使用凤凰呢?交通部门拥有它们并使用它们,承包商拥有它们并使用它们,预拌和测试实验室也拥有它们并使用它们。这项技术正在走出去,走出去成为凤凰团队的一员。那么你在哪里可以找到更多信息呢?你可以去concrete

go to concrete phoenix.com you can also 11:50 go to 11:51 globalgilson.com type in concrete 11:54 Phoenix and learn more there in summary 11:56 measuring water cementaries show fresh 11:58 concrete Game Changer Game Changer this 12:02 can drastically improve the quality 12:03 reliability consistency while lowering 12:06 the cost improving the sustainability of 12:09 your concrete Game Changer lay ladies 12:11 and gentlemen my name is Tyler lay 12:13 please if you like this video like it 12:16 subscribe it share it share it give it 12:20 out let people know about it of course 12:22 subscribe to my channel my concrete 12:25 Maniacs I love you guys can't wait to 12:29 keep chatting with you take care Phoenix 12:33 [Music] 12:35 foreign 12:47 I need to find it before the poachers do

你可以去concretephoenix.com,也可以去globalgilson.com,输入concrete Phoenix并在那里了解更多。总之,测量新鲜混凝土中的水灰比是改变游戏规则的。这可以大大提高质量、可靠性、一致性,同时降低成本,提高混凝土的可持续性。改变游戏规则的女士们和先生们,我的名字是Tyler Lay。如果你喜欢这个视频,请点赞、订阅、分享、分享、分享,让人们知道它。当然,订阅我的频道,我的混凝土狂热者们,我爱你们,迫不及待地继续与你们聊天。保重,凤凰。[Music] 外国 我需要在偷猎者之前找到它。

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