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帶你了解抹面砂漿都有什么成分
來(lái)源:http://www.daquanq.com.cn 日期:2025-07-10 發(fā)布人:
抹面砂漿是建筑墻體表面進(jìn)行抹灰裝飾和保護(hù)的重要材料,其性能直接影響墻面的平整度、耐久性和美觀度。這種砂漿由多種成分按一定比例混合而成,各成分發(fā)揮著不同作用,共同賦予砂漿黏結(jié)力、強(qiáng)度和施工性等關(guān)鍵性能。
Plastering mortar is an important material for plastering, decoration, and protection of building wall surfaces. Its performance directly affects the flatness, durability, and aesthetics of the wall surface. This mortar is made by mixing multiple components in a certain proportion, each of which plays a different role, jointly endowing the mortar with key properties such as bonding strength, strength, and workability.
膠凝材料是抹面砂漿的核心成分,負(fù)責(zé)將其他材料黏結(jié)在一起并形成強(qiáng)度。常見(jiàn)的膠凝材料有水泥和石灰,水泥以其高強(qiáng)度和耐久性成為主流選擇,如普通硅酸鹽水泥,水化后能形成堅(jiān)硬的膠凝體,使砂漿與墻體基層牢固結(jié)合,尤其適用于潮濕環(huán)境或承重墻體。石灰則分為生石灰和熟石灰,熟石灰(氫氧化鈣)與空氣中的二氧化碳反應(yīng)生成碳酸鈣,形成強(qiáng)度,其凝結(jié)硬化速度較慢,但可塑性好,能改善砂漿的和易性,常用于干燥環(huán)境的墻面抹灰,與水泥混合使用時(shí),可調(diào)節(jié)砂漿的硬化速度和柔韌性,避免單純使用水泥導(dǎo)致的砂漿過(guò)硬易開(kāi)裂。
Adhesive material is the core component of plastering mortar, responsible for bonding other materials together and forming strength. Common cementitious materials include cement and lime. Cement has become the mainstream choice due to its high strength and durability, such as ordinary Portland cement. After hydration, it can form a hard cementitious body, making the mortar firmly bonded to the wall base, especially suitable for humid environments or load-bearing walls. Lime is divided into quicklime and hydrated lime. Hydrated lime (calcium hydroxide) reacts with carbon dioxide in the air to form calcium carbonate, which forms strength. Its setting and hardening speed is slow, but it has good plasticity and can improve the workability of mortar. It is commonly used for wall plastering in dry environments. When mixed with cement, the hardening speed and flexibility of the mortar can be adjusted to avoid the mortar being too hard and prone to cracking caused by the use of cement alone.
細(xì)骨料在抹面砂漿中起骨架作用,主要為天然砂,按顆粒粗細(xì)可分為粗砂、中砂和細(xì)砂。中砂是抹面砂漿的常用骨料,其顆粒級(jí)配合理,能填充膠凝材料之間的空隙,使砂漿結(jié)構(gòu)密實(shí),既保證強(qiáng)度又便于施工。細(xì)砂顆粒較細(xì),適合用于表面收光,使墻面更加光滑細(xì)膩,但用量過(guò)多會(huì)降低砂漿強(qiáng)度。砂的含泥量需嚴(yán)格控制,泥含量過(guò)高會(huì)削弱砂漿的黏結(jié)力,導(dǎo)致后期墻面出現(xiàn)起砂、空鼓,因此用于抹面砂漿的砂需經(jīng)過(guò)篩選和清洗,含泥量一般不超過(guò) 3%。
Fine aggregate plays a skeleton role in plastering mortar, mainly natural sand, which can be divided into coarse sand, medium sand, and fine sand according to particle size. Medium sand is a commonly used aggregate for plastering mortar, with a reasonable particle size distribution that can fill the gaps between cementitious materials, making the mortar structure dense, ensuring strength and facilitating construction. Fine sand particles are relatively fine and suitable for surface finishing, making the wall smoother and more delicate, but excessive use will reduce the strength of the mortar. The mud content of sand needs to be strictly controlled. If the mud content is too high, it will weaken the bonding strength of the mortar, leading to sanding and hollowing of the wall in the later stage. Therefore, the sand used for plastering mortar needs to be screened and cleaned, and the mud content generally does not exceed 3%.

摻合料的加入能優(yōu)化砂漿性能,常見(jiàn)的有粉煤灰、礦渣粉等工業(yè)副產(chǎn)品。粉煤灰顆粒細(xì)小且呈球形,摻入砂漿中可減少水泥用量,降低水化熱,同時(shí)改善砂漿的流動(dòng)性和保水性,使抹灰過(guò)程更加順滑,減少因水分過(guò)快流失導(dǎo)致的干裂。礦渣粉則能提高砂漿的后期強(qiáng)度和耐久性,尤其在潮濕環(huán)境中,可增強(qiáng)砂漿的抗?jié)B性,適合用于外墻抹面。摻合料的用量需根據(jù)砂漿性能要求調(diào)整,通常占膠凝材料總量的 10%-30%,過(guò)量使用會(huì)影響砂漿的早期強(qiáng)度。
The addition of admixtures can optimize the performance of mortar, and common industrial by-products include fly ash, slag powder, etc. Fly ash particles are small and spherical, and when mixed into mortar, they can reduce the amount of cement used, lower the heat of hydration, improve the fluidity and water retention of mortar, make the plastering process smoother, and reduce dry cracking caused by rapid loss of moisture. Slag powder can improve the later strength and durability of mortar, especially in humid environments, it can enhance the impermeability of mortar and is suitable for exterior wall plastering. The dosage of admixtures needs to be adjusted according to the performance requirements of the mortar, usually accounting for 10% -30% of the total amount of cementitious materials. Excessive use can affect the early strength of the mortar.
外加劑是抹面砂漿的 “調(diào)節(jié)劑”,根據(jù)功能不同可分為保水劑、增稠劑、抗裂劑等。保水劑(如纖維素醚)能減少砂漿水分蒸發(fā)速度,延長(zhǎng)凝結(jié)時(shí)間,便于大面積連續(xù)施工,避免因砂漿過(guò)快干燥導(dǎo)致的墻面不平整。增稠劑可提高砂漿的黏稠度,防止施工時(shí)出現(xiàn)流淌現(xiàn)象,尤其在垂直墻面抹灰時(shí),能保證砂漿穩(wěn)定附著。抗裂劑(如聚丙烯纖維)則通過(guò)在砂漿中形成三維網(wǎng)絡(luò)結(jié)構(gòu),抑制干燥收縮產(chǎn)生的裂縫,提高墻面的整體性和耐久性。外加劑的用量雖少(通常不超過(guò)砂漿總質(zhì)量的 1%),但對(duì)砂漿性能的改善作用顯著,需根據(jù)施工環(huán)境和墻體材質(zhì)合理選擇。
Admixtures are the "adjusters" of plastering mortar, which can be divided into water retaining agents, thickeners, crack inhibitors, etc. according to their different functions. Water retaining agents (such as cellulose ether) can reduce the evaporation rate of mortar moisture, prolong the setting time, facilitate large-scale continuous construction, and avoid uneven walls caused by rapid drying of mortar. Thickening agents can increase the viscosity of mortar, prevent flow during construction, and ensure stable adhesion of mortar, especially when plastering vertical walls. Crack resistant agents (such as polypropylene fibers) form a three-dimensional network structure in mortar to suppress cracks caused by drying shrinkage and improve the overall integrity and durability of the wall. Although the dosage of additives is small (usually not exceeding 1% of the total mass of mortar), they have a significant effect on improving the performance of mortar, and should be selected reasonably according to the construction environment and wall material.
本文由濟(jì)南抹面砂漿友情奉獻(xiàn).更多有關(guān)的知識(shí)請(qǐng)點(diǎn)擊:http://www.daquanq.com.cn真誠(chéng)的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識(shí)我們將會(huì)陸續(xù)向大家奉獻(xiàn).敬請(qǐng)期待.
This article is a friendly contribution from Jinan gypsum powder For more information, please click: http://www.daquanq.com.cn Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.
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