Microaneurysm
发表于 2025-3-25 06:53:07
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恶名声
发表于 2025-3-25 08:12:03
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教义
发表于 2025-3-25 12:56:04
Fritz G. Wallner,Martin J. Jandlce no standard method are present regarding the acid corrosion, the comparison of the results between different laboratories is strongly related to the experimental conditions. In this research two methods were compared based on the complete concrete immersion in a sulfuric acid solution with differ
胰岛素
发表于 2025-3-25 17:58:09
Chandra Bhushan Kumar,Sonali Ghoshycled aggregate particles increases the content of hydration products from Portland cement that are able to react with external sulphates. In addition, it increases the porosity of the resulting material, facilitating the penetration of ions. In this paper, we present experimental results focusing o
执拗
发表于 2025-3-25 21:19:52
Introduction: Indigenous Identity in Africain the field exposition, these conditions may vary during the service life. In addition, not always is possible to control the composition of the commercial mortars or concretes. In the present work, seven different mortars are studied under two temperatures and three external solutions. The tempera
Colonnade
发表于 2025-3-26 01:19:52
D. Heuser,N. Freckmann,K. Wiedemanns before giving usable results. It is possible to shorten the response time by stimulating the penetration of sulphates. One way to achieve that is to dry the material at 60 °C then to saturate it with a sulphate solution before the test. The impact of this thermal pre-conditioning on the sulphate a
发展
发表于 2025-3-26 06:00:18
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围裙
发表于 2025-3-26 12:26:55
D. Langrehr,G. Singbartl,R. Neuhausost widely accepted performance method. However, the test often requires measurements that last from 6 months to a year, making it a very unpopular among practitioners. This paper presents a new method that is two to three times faster than the current ASTM test by accelerating the penetration and d
Minuet
发表于 2025-3-26 14:03:35
Schilddrüse und Nebenschilddrüse But often it was observed that also CEM I-SR cements caused high length changes. Therefore, the significance of the test results was critically questioned. With a modified test method, significantly better test results could be achieved for cements with known high and low sulphate resistance. The m
幻想
发表于 2025-3-26 17:30:48
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