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凝土破损、起砂有什么修补方法?水泥混凝土常见的破坏形式,有表面起砂起灰、纹裂、网裂、起皮、磨损、露骨、坑槽、孔洞等。孔洞是因为水泥混凝土路面板表面有局部破损,形成一定深度的洞穴成为孔洞。面层骨料局部脱落产生的长槽称为坑槽。孔洞和坑槽的形成主要是由于砂石材料含泥量过大,混凝土内有泥土或杂物所致。露骨是水泥混凝土表面结合料磨失,成片或者成段的呈现过渡的粗糙称为麻面,路面混凝土保护层脱落形成的骨料裸露。麻面主要是由于混凝土施工时遇雨所致。露骨主要是混凝土表面灰浆不足,泌水提浆造成混凝土路面表面强度降低。松散是水泥混凝土地面由于结合料不足或者失效,成片或成段的呈现过渡的粗砂和砂石材料分离的现象称。松散主要是由于砂石含泥量较大,水泥质量较差或较少,或混凝土本身强度不足引起。
如果混凝土地面破损、起砂应该怎样修补呢?
混凝土表面修补砂浆是一种聚合物水泥基修补砂浆,主要用于水泥砂浆或混凝土地面、墙面、屋面的表面缺陷(如毛面、磨窝等)外观修复。预拌式干粉砂浆,纤维加强,室内外均可使用,加水搅拌即可直接抹面修补。
一、适用范围:
水泥砂浆(墙)地面、混凝土(墙)地面、混凝土屋面、混凝土构件表面粗糙、麻窝、坑洼的补平。
二、施工工艺:
1、基面要求及预处理:
①保持地面干燥,清扫表面砂尘;若表面有水泥壳、油漆、涂料等附着物,应完全去除。若具备条件,可用清水将地面清洗干净,待表面完全干燥后再涂刷界面剂。
②涂刷界面剂:液体界面剂加1倍清水搅匀,滚筒均匀涂刷1-2遍(干燥后表面出现一定的光泽度即可)。
③一般需要1-6小时、当界面剂完全干燥后方可进行修补砂浆的批刮。
2、配料:混凝土表面修补砂浆干料,按干料:水=1:0.30-0.35(重量比)搅拌均匀,不得有结块。配制好的砂浆必须在1小时内用完,冬季配方必须在30分钟内用完。
3、批刮:
抹刀(批刀)或专用镘刀均匀刮涂,单次涂层厚度不大于5mm。底层砂浆凝固后方可进行后续施工,砂浆涂层总厚度不大于15mm。技术指标请参考混凝土表面修补砂浆检测报告。
以上是“混凝土破损、起砂有什么修补方法”的简要介绍,更多“混凝土破损、起砂有什么修补方法”信息,请咨询混凝土表面修补砂浆厂家.泥地面施工不合格,表现在水泥地坪质量糟糕,水泥面掉沙子、起砂起灰尘,混凝土地面平整度差有坑洼麻窝,地面产生不规则裂缝等。不合格的原材料(如水泥、砂石料不合格)、不合格的施工工艺和养护措施,是水泥混凝土地面施工不良、质量不合格的常见原因。
水泥地面一旦施工不合格,可以参考以下处理办法。
1、不规格裂缝的修补方法:修理水泥混凝土地面裂缝的材料主要有聚氨酯、聚硫环氧树脂、环氧树脂等高分子化学材料。根据修补季节、裂缝程度、施工工艺等因素选用以下方法:直接灌入法,喷嘴喷浆法,条带罩面法。
2、地面平整度的改善方法:可以通过水磨石机对基面进行打磨处理坑,地面麻窝、坑洼可以采用混凝土表面修补砂浆修补平整。
3、地面起砂起灰问题:
Broken concrete, sand what repair method? Common failure mode concrete, from the sand surface from dust, crazing, network crack, peeling, wear, explicit, pits, holes and so on. Hole because cement concrete pavement surface local damage, a certain depth of the cave become holes. Surface trough partial loss of aggregate produced called pits. Holes and pits are formed mainly due to gravel material containing excessive mud, dirt or debris inside the concrete has caused. Explicit binding cement concrete surface wears off, into a piece or a segment showing a rough transition called pockmarked face, exposed aggregate concrete pavement forming a protective layer off. Pock was mainly due to the rain caused when the concrete. Mainly the lack of explicit concrete surface mortar, bleeding caused by surface water extraction slurry reduce the strength of concrete pavement. Loose cement concrete floor or fail due to insufficient binder, into a film or a segment showing the transition of coarse sand and gravel material separation phenomenon known. Loose mainly due to the large amount of sand, clay, cement quality is poor or less, or less than the strength of the concrete itself caused.
If the concrete floor is damaged, from the sand should you repair it?
Concrete surface repair mortar is a polymer cement-based repair mortar, mainly used in cement mortar or concrete floors, walls, roof surface defects (such as matte, grinding nest etc.) Appearance repair. Ready-mixed mortar dry powder, fiber reinforced, indoor and outdoor use, add water and stir to direct plaster repair.
First, the scope:
Cement mortar (wall) ground, concrete (wall) ground, concrete roof, concrete structures surface roughness, hemp litter, potholes fill level.
Second, the construction process:
1, the base surface requirements and pretreatment:
① keeping the floor dry, clean surface sand and dust; if the surface casing cement, paints, coatings and other fixtures should be completely removed. If qualified, available water to clean the ground until the surface is completely dry before brushing interface agent.
② brushing interface agent: liquid interface agent plus one times of water, stir, roll evenly brushing 1-2 times (after drying the surface gloss can be certain).
③ generally require 1-6 hours, when the interface agent is completely dry before repair mortar Scraping.
2, ingredients: concrete surface repair mortar dry material, based on dry material: water = 1: 0.30-0.35 (weight ratio) Stir, without caking. The prepared mortar must be used within 1 hour, winter recipes must be used within 30 minutes.
3, Scraping:
Spatula (batch tool) or special trowel uniform coating, the coating thickness is not more than a single 5mm. Bottom mortar solidified before subsequent construction, mortar coating total thickness of not more than 15mm. Technical indicators refer to the concrete surface repair mortar test report.
These are the "broken concrete, sand what repair method," the brief introduction, more "concrete damage, sand what repair method" information, please consult the concrete surface repair mortar factory. Mud floor construction failure, manifested in concrete Ping poor quality cement surface off the sand, sand from dust, concrete floor flatness difference nest from hemp have potholes, cracks and other irregular ground. Substandard raw materials (such as cement, sand and gravel failure), the failure of construction technology and conservation measures, is poor construction concrete floor, a common cause of substandard quality.
Once the construction of substandard cement floor, you can refer to the following approach.
1, no standard method for repairing cracks: Repair cracks in cement concrete floor main polymer polyurethane, polysulfide epoxy resin, epoxy resin and other chemical materials. Use the following method of repair according to the season, the extent of the crack, construction technology and other factors: Direct poured into the method, a nozzle spraying method, a strip overlay method.
2, to improve methods of surface flatness: terrazzo machine can be polished base surface pit, ground hemp litter, potholes can smooth concrete surface repair mortar repair.
3, ground from the sand from gray issue:
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