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发布时间:
2019
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01
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17
高性(xing)(xing)(xing)(xing)能混(hun)(hun)凝土(一)材料组(zu)成普通(tong)(tong)硅酸盐水泥、优(you)质矿物(wu)(wu)掺合(he)料、精品砂(sha)、精品石、水和(he)高性(xing)(xing)(xing)(xing)能混(hun)(hun)凝土专用(yong)(yong)(yong)(yong)外加剂(ji)(二)性(xing)(xing)(xing)(xing)能指标强(qiang)度(du)等级:C30~C80密(mi)度(du)范围:2000~2800kg/m³(三(san))特(te)点与用(yong)(yong)(yong)(yong)途高性(xing)(xing)(xing)(xing)能混(hun)(hun)凝土是通(tong)(tong)过预(yu)拌(ban)和(he)绿(lv)色(se)(se)生产(chan)(chan)方(fang)式(shi)制成的(de)具有优(you)异的(de)拌(ban)合(he)物(wu)(wu)性(xing)(xing)(xing)(xing)能、力学(xue)性(xing)(xing)(xing)(xing)能、耐(nai)久性(xing)(xing)(xing)(xing)能和(he)长(zhang)期性(xing)(xing)(xing)(xing)能的(de)混(hun)(hun)凝土。与普通(tong)(tong)混(hun)(hun)凝土相比,具有如下特(te)征:1.采(cai)(cai)用(yong)(yong)(yong)(yong)绿(lv)色(se)(se)生产(chan)(chan)方(fang)式(shi)生产(chan)(chan);2.采(cai)(cai)用(yong)(yong)(yong)(yong)较低水胶比;3.合(he)理选用(yong)(yong)(yong)(yong)优(you)质的(de)常规原(yuan)材料。主要用(yong)(yong)(yong)(yong)于对(dui)工(gong)程(cheng)(cheng)质量、应用(yong)(yong)(yong)(yong)环境和(he)使(shi)用(yong)(yong)(yong)(yong)性(xing)(xing)(xing)(xing)能有更(geng)高、更(geng)具体要求的(de)建(jian)(jian)设工(gong)程(cheng)(cheng),目(mu)前已在道(dao)路(lu)桥梁工(gong)程(cheng)(cheng),轨道(dao)交(jiao)通(tong)(tong)、机场、高铁(tie)站(zhan)等大(da)型(xing)市政(zheng)工(gong)程(cheng)(cheng)得(de)到(dao)广泛应用(yong)(yong)(yong)(yong),其中我(wo)司参建(jian)(jian)的(de)重(zhong)庆(qing)西站(zhan)铁(tie)路(lu)交(jiao)通(tong)(tong)枢纽工(gong)程(cheng)(cheng)属(shu)于高性(xing)(xing)(xing)(xing)能混(hun)(hun)凝土应用(yong)(yong)(yong)(yong)的(de)典型(xing)案例(li)。
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发(fa)布(bu)时(shi)间:
2019
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01
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17
大(da)(da)(da)体积(ji)混(hun)(hun)(hun)凝(ning)(ning)土(tu)(一)材料组(zu)成水(shui)(shui)化热低的(de)通用(yong)硅(gui)酸盐(yan)水(shui)(shui)泥(ni)、优质矿物掺合料、砂、石(shi)、水(shui)(shui)和大(da)(da)(da)体积(ji)混(hun)(hun)(hun)凝(ning)(ning)土(tu)专(zhuan)用(yong)外加剂(ji)(二(er))性(xing)能指标(biao)强度(du)等级:C25~C50密度(du)范围(wei):2000~2800kg/m³(三)特点与(yu)用(yong)途与(yu)普通混(hun)(hun)(hun)凝(ning)(ning)土(tu)相比,具有如(ru)下特征:1.可采用(yong)混(hun)(hun)(hun)凝(ning)(ning)土(tu)60d或90d的(de)强度(du)作为强度(du)评定(ding)或工程(cheng)验收依据;2.混(hun)(hun)(hun)凝(ning)(ning)土(tu)浇(jiao)筑体在入模温度(du)基础上(shang)温升值不(bu)宜大(da)(da)(da)于(yu)50℃;3.混(hun)(hun)(hun)凝(ning)(ning)土(tu)浇(jiao)筑体里表(biao)温差不(bu)宜大(da)(da)(da)于(yu)25℃。目前(qian)在筏板类(lei)基础或大(da)(da)(da)尺寸梁(liang)柱中应用(yong)较多。其中江北(bei)机场(chang)枢纽工程(cheng)大(da)(da)(da)体积(ji)筏板是我司大(da)(da)(da)体积(ji)混(hun)(hun)(hun)凝(ning)(ning)土(tu)产品应用(yong)的(de)典型案例,一次性(xing)浇(jiao)筑大(da)(da)(da)体积(ji)混(hun)(hun)(hun)凝(ning)(ning)土(tu)7000m3。
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发布(bu)时间:
2017
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05
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12
(一)材料(liao)组成胶凝(ning)(ning)材料(liao)、矿物(wu)掺合料(liao)、陶(tao)(tao)粒(li)、砂、陶(tao)(tao)粒(li)混(hun)(hun)凝(ning)(ning)土(tu)(tu)专用(yong)外(wai)加剂和(he)(he)(he)水(二)性(xing)能指(zhi)标强(qiang)度(du)等级(ji)(ji):LC10~LC40密(mi)度(du)等级(ji)(ji):1300~1800kg/m³导(dao)热(re)系数:0.23~0.52W/(m·K)(三)特点(dian)(dian)与用(yong)途陶(tao)(tao)粒(li)混(hun)(hun)凝(ning)(ning)土(tu)(tu)具(ju)(ju)有如(ru)下特点(dian)(dian):1.重量轻(qing),强(qiang)度(du)高;2.弹(dan)(dan)性(xing)模量低,抗震性(xing)能好;3.耐(nai)火(huo)性(xing)高,导(dao)热(re)系数仅为普通混(hun)(hun)凝(ning)(ning)土(tu)(tu)的(de)(de)12%~13%,耐(nai)火(huo)极限时间可(ke)(ke)达(da)3~4h;4.对(dui)养护条件的(de)(de)敏感性(xing)下降,在同样的(de)(de)约束条件和(he)(he)(he)温差作用(yong)下,开裂趋(qu)势较(jiao)小;5.陶(tao)(tao)粒(li)和(he)(he)(he)砂浆之间具(ju)(ju)有良好的(de)(de)弹(dan)(dan)性(xing)协调性(xing),减少了内应力(li)以及相应的(de)(de)微裂纹,使其(qi)具(ju)(ju)有较(jiao)高的(de)(de)耐(nai)久性(xing)。受强(qiang)度(du)等级(ji)(ji)和(he)(he)(he)密(mi)度(du)等级(ji)(ji)的(de)(de)影响,陶(tao)(tao)粒(li)混(hun)(hun)凝(ning)(ning)土(tu)(tu)既可(ke)(ke)以用(yong)于保(bao)温结构,也(ye)可(ke)(ke)以用(yong)于承重部(bu)位。如(ru)软弱地基上(shang)的(de)(de)建筑,高层建筑、海洋(yang)构筑物(wu)、大(da)跨度(du)桥梁和(he)(he)(he)城市立交桥等大(da)型工程(cheng)。
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发布时间:
2017
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05
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12
(一)材料(liao)组成(cheng)胶凝材料(liao)、矿(kuang)物掺合料(liao)、陶粒(li)、陶砂(sha)、全轻混(hun)凝土(tu)专用(yong)(yong)外加(jia)剂(ji)和(he)水(二)性能指标强度等级(ji):LC5.0~LC15密度等级(ji):1000~1300kg/m³导(dao)热(re)系数:0.23~0.49W/(m·K)(三(san))特点与用(yong)(yong)途自重轻、保温隔热(re)性能优异、抗(kang)震性好、低开裂(lie)趋势、不燃、耐久、施(shi)工简易,符(fu)合国家(jia)提(ti)倡(chang)的节能减排的宏观发展目标。可用(yong)(yong)作(zuo)小型空心砌块和(he)墙板(ban)、屋面板(ban)等建筑(zhu)围护结构(gou)及(ji)需填充部位等,在工业和(he)民(min)用(yong)(yong)高层及(ji)大跨(kua)度建筑(zhu)中广泛应用(yong)(yong)。
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发(fa)布时间:
2017
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05
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12
(一)材(cai)料(liao)组成胶凝材(cai)料(liao)、矿物掺(chan)合料(liao)、砂、石、重骨料(liao)、配重材(cai)料(liao)、重混凝土专用(yong)(yong)(yong)外(wai)加剂和水(二)性能指标强度等(deng)级:C30~C40密度范围:2800~4500 Kg/m3(三)特点与用(yong)(yong)(yong)途对γ射(she)(she)线、X射(she)(she)线及中(zhong)子射(she)(she)线均有较好的(de)屏蔽效果,材(cai)料(liao)来源广泛,便于(yu)施(shi)工。主(zhu)要用(yong)(yong)(yong)于(yu)有辐射(she)(she)屏蔽需求的(de)混凝土结构,如医院等(deng)。