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@broke_alternance: Si toi aussi tu as trouvé ton Alternance, n’hésite pas à rejoindre le groupe WhatsApp. Le lien est sur mon profil directement. 🔥 #alternance #etudiant #recruteur #alternance2026

broke_alternance
broke_alternance
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Region: FR
Monday 03 August 2026 09:22:44 GMT
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anily354
Lina ⵣ🇩🇿🇫🇷 :
Quand vous dites effort dans quel sens on arrête pas de postuler de changer les CV, on sait plus quoi faire
2026-08-03 20:55:28
2
hugo._stph
hugo._stph :
J’ai un entretien demain grâce a une candidature spontanée. Je suis trop content.
2026-08-03 15:16:21
1
mungudjochefu2
𝐌𝐔𝐍𝐆𝐔 𝐃𝐉𝐎 𝐂𝐇𝐄𝐅𝐔 :
J'ai raté autrefois, la correction de mon CV !
2026-08-03 09:39:19
1
azria.mf
A M F ♡ :
Je galère encore 😩
2026-08-03 13:44:53
1
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GOGLET Bình Giữ Nhiệt Thể Thao Inbox 304 Giữ Lạnh 12-24 Tiếng Bình 650ml,950ml,1200ml #luongtoanthang712 #binhgiunhiet #goglet #binhdungnuoc #binhnuoc
GOGLET Bình Giữ Nhiệt Thể Thao Inbox 304 Giữ Lạnh 12-24 Tiếng Bình 650ml,950ml,1200ml #luongtoanthang712 #binhgiunhiet #goglet #binhdungnuoc #binhnuoc
#tonysoprano #tonysopranoedit #thesopranos #team_dorne🔱 #foryoupage
#tonysoprano #tonysopranoedit #thesopranos #team_dorne🔱 #foryoupage
A concrete bonding agent (also known as a concrete bonder, adhesive, or primer) is a substance applied to an existing concrete surface to improve the adhesion of new concrete, mortar, plaster, stucco, or other cementitious materials. Its primary purpose is to create a strong, durable, and seamless bond between the old and new materials, preventing delamination, cracking, and premature failure of the repair or overlay. --- ### Why are Concrete Bonding Agents Used? Concrete, by nature, is porous and can have a smooth or contaminated surface, making it difficult for new material to adhere properly. Bonding agents address several challenges: 1. Poor Adhesion: Without a bonding agent, new concrete or repair mortar might not properly
A concrete bonding agent (also known as a concrete bonder, adhesive, or primer) is a substance applied to an existing concrete surface to improve the adhesion of new concrete, mortar, plaster, stucco, or other cementitious materials. Its primary purpose is to create a strong, durable, and seamless bond between the old and new materials, preventing delamination, cracking, and premature failure of the repair or overlay. --- ### Why are Concrete Bonding Agents Used? Concrete, by nature, is porous and can have a smooth or contaminated surface, making it difficult for new material to adhere properly. Bonding agents address several challenges: 1. Poor Adhesion: Without a bonding agent, new concrete or repair mortar might not properly "stick" to the old surface, leading to a weak bond. 2. Delamination: The new layer can separate or peel off from the existing concrete, especially with traffic or temperature changes. 3. Microcracking/Shrinkage: Bonding agents can help mitigate shrinkage cracks in new, thin overlays by ensuring they move uniformly with the base. 4. Moisture Control: Some bonding agents can help manage moisture transfer between layers. 5. Chemical Reactivity: They can create a chemical bridge for stronger bonding. ### How Concrete Bonding Agents Work (General Principles): Bonding agents typically achieve adhesion through one or a combination of the following mechanisms: 1. Mechanical Interlock: The bonding agent penetrates the pores and irregularities of the existing concrete surface. When it cures, it forms tiny "hooks" or resin tags that physically interlock with the prepared surface, providing strong mechanical grip. 2. Chemical Adhesion: Some bonding agents contain polymers or resins that form chemical bonds directly with the minerals in the concrete or with the polymers in the new material. 3. Wetting and Film Formation: They improve the "wetting" of the old surface, allowing the new material to spread and flow more effectively into microscopic pores, forming a continuous, adhesive film. ### Types of Concrete Bonding Agents: There are several types of concrete bonding agents, each with different properties and ideal applications: 1. Acrylic (Latex-based) Bonders: * Composition: Polymer emulsions (e.g., styrene-butadiene rubber (SBR), polyvinyl acetate (PVA), acrylic polymers). * Mechanism: Form a flexible polymer film that creates mechanical interlock. Many can also be used as admixtures mixed into the new concrete/mortar to improve its properties (flexibility, strength, adhesion, water resistance). * Application: Applied as a thin layer and allowed to dry to a tacky film before new material is applied ("dry-on-dry" or "tacky-dry"). Or, for admixtures, the "wet-on-wet" approach can be used where a cementitious slurry with the admixture is applied, followed by the new concrete before the slurry dries. * Pros: Good water resistance (SBR), good for thin overlays, flexible, breathable, widely available, relatively inexpensive. * Cons: Not for structural repairs requiring high strength; some (PVA) can re-emulsify if exposed to prolonged moisture. 2. Epoxy-based Bonders: * Composition: Two-part thermosetting resins (epoxy resin and a hardener/curing agent). * Mechanism: Form extremely strong chemical bonds with the concrete. They are typically 100% solids, meaning they don't lose volume as they cure. * Application: Applied to a prepared concrete surface. New concrete/mortar is often applied *while the epoxy is still tacky* ("wet-on-wet") to achieve optimal chemical adhesion. * Pros: Very high bond strength (often stronger than the concrete itself), excellent chemical resistance, waterproof, ideal for structural repairs, heavy-duty overlays, and anchoring. * Cons: More expensive, less flexible, sensitive to moisture during application, limited pot life (working time), requires careful mixing a nd surface preparation. 3. Cementitious Slurries/Grout: * Comp
cabang ips
cabang ips
ใครนอนชอบตะแคง ถูกใจสิ่งนี้แน่นอนน!🛌✨ #kamolarts #chowa #หมอนลูน่า #หมอนนอนตะแคง #ของใช้ในบ้าน
ใครนอนชอบตะแคง ถูกใจสิ่งนี้แน่นอนน!🛌✨ #kamolarts #chowa #หมอนลูน่า #หมอนนอนตะแคง #ของใช้ในบ้าน
Sorry I’m like sooo emo
Sorry I’m like sooo emo

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