U1601和C1029：UHPC專用外加劑
 |  |
|---|---|
產(chǎn)品簡介
超高性能混凝土（簡稱UHPC），是指一種具有超強(qiáng)力學(xué)性能，抗壓強(qiáng)度在120MPa以上（最高可達(dá)200MPa）。同時(shí)，UHPC還具有高韌性、超高耐久性和優(yōu)良澆筑及成型性。UHPC通常采用普通硅酸鹽水泥、硅灰、石英粉、細(xì)硅砂、高效減水劑、穩(wěn)態(tài)劑、水、鋼、碳纖維或有機(jī)纖維等高強(qiáng)度韌性材料為原料。
U1601穩(wěn)態(tài)劑是一種具有競爭性吸附、分散超細(xì)粉末，降低混凝土粘度，穩(wěn)定UHPC流動(dòng)性和保持性、確保UHPC具有良好狀態(tài)和制品表面光潔性的專用外加劑。可保持UHPC 2小時(shí)以上良好狀態(tài)，解決因含超細(xì)粉末造成的混凝土流動(dòng)度損失過快問題，可保持UHPC混凝土處于良好的穩(wěn)定狀態(tài)。
C1029聚羧酸減水劑（粉劑）具有高減水率和高流動(dòng)性，水泥膠砂減水率高達(dá)30%以上，是UHPC配套使用的外加劑。
Ultra-high performance concrete (UHPC) refers to a type of concrete having specific durability, excellent mechanical properties, compressive strength least 120MPa and high tensile ductility and toughness.
UHPC is commonly made of ordinary Portland cement, silica fume, fine quartz, fine silica sand, admixture, water and fibrous materials. To achieve the UHPC, the mixture shall have a low water/cement ratio and the fresh mix shall have a good workability in a designated working time. It means the fresh mixes to be flowable, workable and well integrated within designated working time. Supperplasticizer is well functioned for reducing water demand of a fresh concrete and mortar. By using supperplasticizer alone, it does provide a flowable mix initially but flowability of the mix loses quickly. One of our products named as stabilizer U1601 provides an excellent solution for this issue.
U1601 stabilizer is a surfactant made of a polymeric matter. It has an ability to disperse the ultra fine particles and reduce viscosity, improve the integrativeness and retain the flowability of a fresh mixed concrete/mortar within designated working time. It shall be highlighted that U1601 does not result in air entraiment of fresh mixed concrete/mortar. Hence, its mechanism to improve integrativeness and workability of the fresh mix is completely different from the traditional method by an air entrainment agent. It dose not has adversely effect on the mechanical properties when U1601 is dosed. Compared to supperplasticizer, the U1601 has excellent selectivity to be absorbed on surfaces of clays and fines in fresh mixed concrete/more and cement hydrates. U1601. Thus, when the admixture in UHPC is made of the combination of superplasticizer and stabilizer, it ensures the qualities of both fresh and hardened concrete/mortar as well as the appearance of hardened concrete/mortar (surface smoothness). The working time of fresh mix is adjustable by changing the ratio of supperplasticizer to stabilizer U1601. The working time is able to be designed as long as 2 hours. or even longer.
C1029 polycarboxylate superplasticizer (powder form) is a high range of water reducer, water reducing rate is as high as 30%. It is a guarantee to obtain high flowable fresh mixed concrete/mortar. The combination of C1029 and U1601 is best choice for for making UHPC.
(for further info & quote, pls. contact us: [email protected])
技術(shù)指標(biāo)
特點(diǎn)
1. 保持UHPC混凝土具有良好的狀態(tài)，包括流動(dòng)度、均勻性等；
2. 配制超低水灰比和超高強(qiáng)度的UHPC，具有低粘度、和易性好的特點(diǎn)；
3. 用競爭吸附的原理解決具超細(xì)粉末和黏土類組份對產(chǎn)品性能的負(fù)面影響；
4. 使用本品可以適當(dāng)降低減水劑的用量和水泥用量；
5. 可解決含泥砂、機(jī)制砂、山砂、水洗砂等材料造成的質(zhì)量問題；
6. 可用于復(fù)合高鋁水泥、硫鋁酸鹽水泥、膨脹劑、速凝劑等材料，解決其流動(dòng)性與狀態(tài)問題；
7. 本品無緩凝性和引氣性；
8. 與其它添加劑相容性好。
包裝與貯存
1. 包裝：25kg復(fù)合塑料袋或紙板桶包裝，內(nèi)加塑料袋防潮。
2. 貯存：本產(chǎn)品避免陽光直射和雨淋，在陰涼干燥通風(fēng)處保存。
3. 儲存穩(wěn)定性可保持12個(gè)月。
4.當(dāng)開封后，產(chǎn)品應(yīng)及時(shí)使用，用不完的要及時(shí)密封，防止產(chǎn)品吸濕變質(zhì)。
注意事項(xiàng)
1.本產(chǎn)品無毒，但不可食用。
2.使用時(shí)對環(huán)境未發(fā)現(xiàn)有污染，但丟棄或排放時(shí)應(yīng)符合當(dāng)?shù)丨h(huán)保條例的要求。
3.當(dāng)接觸到人的身體和眼睛時(shí)，應(yīng)盡快用清水沖洗，對部分人體造成過敏現(xiàn)象時(shí)應(yīng)及時(shí)就醫(yī)治療 。
4.本產(chǎn)品的包裝物不可隨便丟棄，應(yīng)符合當(dāng)?shù)丨h(huán)保條例的要求。