הוספת מים לבטון

16 פוסטים / 0 חדשים

השב

פרסום אחרון

השב

ו, 10/14/2011 - 08:06

עינב

כמה מ"ק מים יש במיקסר (לא

כמה מ"ק מים יש במיקסר (לא בתרכובת הבטון) ? ומה ההשלכות אם נהג המיקסר מוסיף 100% מהמים לתרכובת הבטון?

ו, 10/14/2011 - 11:45

a_boimel

הוספת מים שאינה מתוכננת

הוספת מים שאינה מתוכננת מסוכנת ומחלישה את הבטון

ו, 10/14/2011 - 16:50

מערכת האתר

אין בסמכות נהג המערבל, להוסיף

אין בסמכות נהג המערבל, להוסיף מים באתר.

ד, 03/11/2015 - 23:05

ערן

חוזק הבטון

אריה זה שלנהג אסור להוסיף מים זה אולי רק בגדר חוק מה שקורה בפועל שזה 90% מנהגים מוסיפים כמות נכבדה שמגיעה ברמות של אפילו 200-250 ליטר על 8 קוב בטון שזה פי 2.5 ויותר מהתקן.סתם לידע כללי.

ה, 03/12/2015 - 09:21

איציק, מהנדס בניין

הוספת מים לבטון

המתכנן מחוייב לציין על גבי התכניות דרישה שהבטון יתאים לתקן 118 (ייצור הבטון), דרגת חוזק רצויה ודרגת חשיפה של הרכיב.
יחס מים:צמנט בתערובת מוגדר על בסיס הדרישות הללו.
יותר מזה מה נוכל לעשות? לשבת באתר כל פעם שמגיעה משאית?

ד"ר פיזנטי ז"ל כתב בזמנו על הפער הגדל והולך בין תכונות הבטון כפי שהן מוגדרות למתכנן ובין תכונות הבטון בפועל.
לא מצאתי גרסת PDF אבל אפשר לחפש את המאמרים שלו בשמות "תקן 118" ו-"בטון מזוין - Quo Vadis ?"

א, 05/18/2025 - 20:21

(Reply to #6) #7

אנונימי

הוסף תגובה חדשה | CivilEng - מובילים שינויי בענף הבנייה

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The band shall be released to get the blood flowing once more,

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א, 05/18/2025 - 22:27

(Reply to #7) #8

אנונימי

הוסף תגובה חדשה | CivilEng - מובילים שינויי בענף הבנייה

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ב, 03/23/2015 - 14:49

ארלה

לכן, אם מהנדס בא לבצע פיקוח

לכן, אם מהנדס בא לבצע פיקוח על יציקה, שישפוך את הדליים ששמו בצד בהתחלה לבדיקות, ויקח בטון מהחומר בסוף העבודה...

א, 04/19/2015 - 21:35

#10

hasahrr

הוספת מים למיקסר מותרת

בתקן 118 בסעיף 7.5 כתוב שבתעודת המשלוח יש לכתוב: "כמות המים שמותר להוסיף באתר לפני פריקת הבטון" - כלומר הוספת כמות מים מסויימת מותרת על פי התקן.
אני היום ראיתי תעודת משלוח בה היה כתוב שלנהג יש סמכות להוסיף 10 ליטר מים על כל קוב בטון על פי בקש הלקוח.
המפעל שסיפק את הבטון מאושר ופועל על פי תקן 118.

א, 05/18/2025 - 06:12

(Reply to #10) #11

אנונימי

הוסף תגובה חדשה | CivilEng - מובילים שינויי בענף הבנייה

Wer seinem Körper dauerhaft zu wenig Wasser zuführt, erhöht das Risiko unter Bluthochdruck zu leiden. Die Blutkörperchen und Zellen des menschlichen Körpers benötigen Wasser, um ordnungsgemäß zu funktionieren. Kommt

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Besenreiser sind kleinste Adern in der Haut, die sich durch Elastizitäts-Verlust erweitert haben. Sie sind mit Blut gefüllt und daher durch die Haut als hellrote Gefäßbäumchen (Teleangiektasien),

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Herz-Kreislauf-Erkrankungen, Durchblutungsstörungen,

bei denen häufig die Nieren sowie die Beine

betroffen sind. Ferner fördert ein erhöhter Blutdruck die Bildung

einer Herzmuskelverdickung.

Mögliche Ursache ist auch ein von Geburt an oder nach einer

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Denn ist die Herzklappe zu eng (Aortenklappen-Stenose) beziehungsweise der Durchfluss behindert, kann das Blut nicht problemlos aus der linken Herzkammer in den Körper strömen. Die Herzkammerwand

reagiert auf den erhöhten Gegendruck und die verstärkte Anstrengung mit

Muskelwachstum. Mehr Muskeln gelten meistens als erstrebenswert - doch beim menschlichen Herz

ist das eine gefährliche Entwicklung. Normalerweise

hat das erwachsene menschliche Herz ein Gewicht von rund 300 Gramm, und der Muskel, der die beiden Herzkammern trennt,

misst elf Millimeter Stärke. Eine Zunahme der Herzmuskelmasse, Herzmuskel-Hypertrophie genannt, zeigt meist an, dass das Herz zu viel arbeiten muss.

Gleichzeitig ist die körperliche Leistungsfähigkeit eingeschränkt.

Die Aufgabe Ihres Blutes ist die Versorgung Ihrer Organe mit Sauerstoff und

diversen Nährstoffen. Zudem übernimmt es die Funktion, Kohlendioxid aus Ihren Zellen zu befördern. Auch die Regulierung der Temperatur Ihres Organismus sowie das Verschließen von Wunden gehören zum Aufgabenkatalog Ihres

Blutes. Ferner produziert es Antikörper, die sich gegen Krankheiten im Körper wehren. Seien Sie nur vorsichtig mit extrem hohen Dosen von Kurkuma- oder Curcumin-Extrakten, wenn Sie Blutgerinnungsstörungen haben oder gerinnungshemmende

Medikamente einnehmen. Erkundigen Sie sich zuerst bei Ihrem Arzt nach eventuellen Sicherheitsbedenken oder möglichen Wechselwirkungen.

Zu den Produkten, die den Blutfluss wiederherstellen und

helfen, die Blutgefäße zu reinigen, gehören beispielsweise

quick alle Zitrusfrüchte, Sonnenblumenkerne, Feigen, Ingwer und Granatäpfel.

Rüben haben hervorragende Eigenschaften, die empfohlen werden, in das Tagesmenü aufgenommen zu werden. Quick alle Beeren außer Eberesche und Peperoni bewältigen dieses Problem perfekt.

Wenn keine Kontraindikationen vorliegen, wird empfohlen, rote

Paprika nicht öfter als drei- bis viermal pro Woche zu konsumieren. Die traditionelle Medizin kennt viele Rezepte,

die helfen können, dieses Downside zu lösen.

Eine gesunde Ernährung und ausreichend Schlaf können ebenfalls dazu beitragen, die Entzugserscheinungen zu mildern. Es

gibt viele Hilfsmittel, die beim Rauchausstieg unterstützen können. Nikotinersatzprodukte

wie Kaugummi oder Pflaster können helfen, das Verlangen nach Nikotin zu

reduzieren und Entzugserscheinungen zu mildern. Auch Medikamente wie Bupropion oder Vareniclin können helfen, das Verlangen zu reduzieren und

die Symptome des Nikotinentzugs zu lindern. Eine der

wichtigsten Strategien ist es, sich über die Vorteile des Rauchausstiegs zu informieren und diese regelmäßig in Erinnerung zu rufen.

Dauerhaft eingesetzt werden Medikamente zur Blutverdünnung

bei einigen Erkrankungen des Herz-Kreislauf-Systems. Sehr häufig kommen blutverdünnende Medikamente bei Vorhofflimmern zum Einsatz.

Beim Vorhofflimmern handelt es sich um eine Herzrhythmusstörung,

die mit einem hohen Schlaganfallrisiko verbunden ist.

Dies liegt daran, dass das enthaltene Kohlenmonoxid die Fähigkeit des Körpers verringert, Sauerstoff aufzunehmen. Wenn man jedoch mit dem

Rauchen aufhört, kann sich die Anzahl der Erythrozyten im Blut

normalisieren. Rauchen hat eine Vielzahl

negativer Auswirkungen auf den Körper, einschließlich einer Erhöhung

des Risikos für Herz-Kreislauf-Erkrankungen, Krebs und

chronische Lungenerkrankungen. Es kann jedoch beruhigend sein zu wissen, dass die meisten dieser Auswirkungen reversibel sind, wenn man mit dem Rauchen aufhört.

Solchen Menschen ist sehr oft k alt, ihre Glieder sind ständig k alt, ihr Kopf schmerzt und es

tritt häufig Schwindel auf. Der Mädesüß-Kräuteraufguss gilt beispielsweise als hervorragender Ersatz für Aspirin. Ein halbes Glas trockene Rohstoffe wird in eine Halbliter-Thermoskanne gegossen und mit

heißem Wasser übergossen. Kräutertee kann mit Honig getrunken werden, da dieses Produkt impartial wirkt.

Ärzte glauben, dass die Bewohner des Mittelmeers aufgrund

der häufigen Verwendung von Olivenöl praktisch nicht an Herz-Kreislauf-Erkrankungen leiden. Italiener und Griechen nehmen als Nahrungsergänzungsmittel morgens einen Esslöffel Öl auf nüchternen Magen ein. Olivenöl hilft, den Magen zu reinigen und sättigt den Körper mit

den notwendigen Komponenten.

References:

ג, 05/20/2025 - 01:22

(Reply to #11) #12

אנונימי

הוסף תגובה חדשה | CivilEng - מובילים שינויי בענף הבנייה

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ב, 04/20/2015 - 10:08

#13

איציק, מהנדס בניין

הוספת מים לבטון

hasahrr תודה על ההפניה.

הטענה שמועלית פה לדיון היא שאין בקרה על כמות המים שנהג המערבל מוסיף לתערובת (ראה את הדוגמא שנתן ערן בתגובה #5)
כל עוד הנהג מוסיף מים בכמות המאושרת הכל בסדר גמור ולפי התכנון, הבעיה היא שבפועל הנהג מוסיף מים כראות עיניו.

ב, 04/27/2015 - 22:49

#14

hasahrr

מבדיקה קצרה , מערבל בטון יכול

מבדיקה קצרה , מערבל בטון יכול לשאת אפילו 400 ליטר מים, מה שאומר, שאם אין פיקוח, הוא יכול בלי בעיה להוסיף 250 ליטר.
אני לא רואה דרך בה אפשר לדעת כמה ליטרים הוסיף הנהג.

ב, 03/20/2017 - 15:27

#15

מיכה

מים מליחים לתערובת בטון

מה ההשלחות של מים מליחים בתערובת בטון ו/או חמרי מליטה מבוססים צמנט

ג, 03/21/2017 - 08:40

#16

אורח

מים מליחים יגיבו עם הפלדה,

מים מליחים יגיבו עם הפלדה, יחישו את תהליך הקורוזיה ויפחיתו את קיים המבנה.
אני לא בקיא מספיק לפרט יותר מזה.

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הוסף תגובה חדשה

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טופס חיפוש

הוספת מים לבטון

הוסף תגובה חדשה

Plain text

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