Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
foam concrete materials are used in various fields of civil engineering practice. They are most commonly used in sub-base layers of buildings or foundation structures, as a fill material in open spaces such as unused underground structures, and in insulating walls and floors.
ar foam concrete materials have several advantages over traditional cement-based materials, such as low water-to-cement ratio (w/c) and high workability. They also have a lower bulk density and are more ductile, saving material inputs and improving the physical and mechanical properties of the concrete.
Fibers can increase the flexural strength of foam concrete, mainly by transferring tensile stresses through the bridging effect. 'nehe, fibers can improve the post-cracking behavior of foam concrete.
A variety of natural fibers, such as sugar cane pulp fiber, Fibra coco, ne fibra fibra coco, to da añadido jar hormigón espuma. 'nehe, njapu'befi gi fibras tsa̲ da reducir ar contracción secado ne ar absorción ar dehe.
Agentes espumantes sintéticos 'nehe ya ampliamente utilizados jar producción hormigón espuma. ya aditivos ar disuelven jar dehe nu'bu da agitado a través de 'na “cigarro”. producen hormigón espumoso hingi mpa̲ti, da 'nehe ar bombeable.
Agentes espumantes a base de proteínas xi mezclar ar ko ar dehe, pe hingi ya adecuados pa mezclar ko plastificantes wa agentes reductores ar dehe. Nu'bu̲ 'nar agente reductor ar dehe wa plastificante ar mezcla ko 'nar agente espumante basado proteína, ar mezcla xí inestable ne gi hoki segregar Nxoge ar mezcla.
Microgrietas ar observan ja ya imágenes SEM muestras espuma hormigón expuesta a 800 degC nu'bya ar disociación productos químicamente unidos ar dehe ne hidratación jar matriz hormigón [18]. Nu'bu̲ CF ar añade ja ar hormigón, ngetho ge 'nar estructura red espacio ko xi hño 'mu̲i.