CN1245154A - 玻纤水泥 - Google Patents

玻纤水泥 Download PDF

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CN1245154A
CN1245154A CN 98117267 CN98117267A CN1245154A CN 1245154 A CN1245154 A CN 1245154A CN 98117267 CN98117267 CN 98117267 CN 98117267 A CN98117267 A CN 98117267A CN 1245154 A CN1245154 A CN 1245154A
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glass fibre
grog
cement
fibre cement
gypsum
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CN1089322C (zh
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张丕兴
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00Hydraulic cements
    • C04B7/36Manufacture of hydraulic cements in general
    • C04B7/38Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
    • C04B7/42Active ingredients added before, or during, the burning process
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00034Physico-chemical characteristics of the mixtures
    • C04B2111/00198Characterisation or quantities of the compositions or their ingredients expressed as mathematical formulae or equations

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

本发明为一种用于制作玻璃纤维增强水泥制品的玻纤水泥,其熟料是在1250℃~1400℃温度范围和氧化或中性气氛中烧成的,以硫铝酸钙固溶Zn和Zr离子的固溶体为主要矿相的玻纤水泥熟料,其化学组成的重量百分数计SiO28~13%,Al2O325~35%,Fe2O31~6%,CaO40~48%,TiO20~3%,MgO0~3%,SO38~12%,ZnO0.5~2%,ZrO21~3%,根据使用要求,使用时加入一定量石膏和其它填加剂磨制而成。

Description

玻纤水泥
本发明涉及一种低碱度水泥,尤其是用于制作玻璃纤维增强水泥制品的一种特种水泥——玻纤水泥。
制作玻璃纤维增强水泥制品所用的水泥,水化时产生氢氧化物对中碱玻璃纤维侵蚀,使玻璃纤维的强度降低,影响制品使用寿命。
本发明的目的提供一种专供制作玻璃纤维增强水泥制品的优质水泥,即玻纤水泥,可大大减轻水泥对玻璃纤维的侵蚀,而且具有较高的早期强度和后期强度,碱度低,自由膨胀小,抗冻融性能高,干缩值小,耐久性好,硬化时间短。
本发明的特点是在CaO-SiO2-Al2O3-CaSO4系统中引进Zn和Zr离子,其熟料是在1250℃~1400℃温度和氧化或中性气氛中煅烧成的以无水硫铝酸钙固溶Zn和Zr离子的固溶体为主要矿相组成的玻纤水泥熟料,化学组成以重量百分数表示如下:
SiO2                8~13%
Al2O3              25~35%
Fe2O3              1~6%
CaO                  40~48%
TiO2                0~3%
MgO                  0~3%
SO3                 8~12%
ZnO                  0.5~2%
ZrO2                1~3%
最佳组成范围以重量百分数表示如下:
SiO2             8~10%
Al2O3           32~35%
Fe2O3           1~3%
CaO               42~45%
TiO2             <3%
MgO               <3%
SO3              8~11%
ZnO               0.5~1.5%
ZrO2             1~2%
本发明水泥的制成是在上述玻纤水泥熟料中加一定量石膏和外加剂磨制而成。
石膏配入量按下列公式进行
设熟料为100重量份,石膏配入量
Figure A9811726700051
式中M为系数,根据对制品早期强度高低,容重大小的要求不同而决定M的大小,M数取0.5~10。
Al2O3为熟料中Al2O3%(重量)
SO3为石膏中SO3%(重量)
上述的外加剂种类有柠檬酸加入量为0.3~0.5%;石灰石加入量为10%~30%;凝灰岩加入量为5~20%。
以下为本发明的三个实施例:
例1.玻纤水泥熟料组成百分数如下:SiO2 8.07%,Al2O3 33.71%,Fe2O3 1.06%,CaO 43.01%,MgO 0.23%,TiO2 1.05%,SO3 10.11%,ZrO 0.92%,ZrO2 1.34
取以上组成熟料100kg,按石膏掺入量计算公式,取M=0.5时,计算出石膏配入量9.7kg,并外掺0.3kg柠檬酸,在球磨机里混磨成玻纤水泥,其物理性能列入表1。
例2.玻纤水泥熟料组成百分数如下:SiO2 10.76%,Al2O3 32.41%,Fe2O3 1.10%,CaO 42.92%,MgO 0.21%,TiO2 1.01%,SO3 9.05%,ZnO 0.68%,ZrO2 1.72
取以上熟料100kg,按石膏掺入量计算公式,取M=1.5时,算出石膏配入量为24.25kg,并外掺石灰石混合材30kg,在球磨机里混磨玻纤水泥,其物理性能列入表1中。
例3.玻纤水泥熟料组成百分数如下:SiO2 8.74%,Al2O3 33.04%,Fe2O3 1.10%,CaO 42.98%,MgO 0.28%,TiO2 1.39%,SO3 10.03%,ZnO 0.89%,ZrO2 1.49。用上述组份的熟料100kg,按石膏掺入量计算公式,取M为10时,算出石膏为215.58kg,并外掺凝灰岩10kg,在球磨机里混磨为玻纤水泥,检验其物性,如表1所示。
                                       表1
名称   比表面积(m2/kg)        凝结时间  自由膨胀率(%) pH             抗折强度(MPa)            抗压强度(MPa)
  初凝(时:分)   终凝(时:分) 1天 3天 7天 28天 1天 3天 7天 28天
  例1   545   0:45   1:02  0.04  9.86   6.0   6.9   7.5   8.4   49.1   61.7   67.6   75.9
  例2   480   0:36   0:57  0.06  10.03   5.5   6.3   7.1   8.6   41.6   51.4   59.6   64.7
  例3   518   0:30   0:50  0.08  10.10   5.0   5.6   6.5   6.7   37.4   45.2   48.8   60.3
  现有H70   582   0:22   0:32  0.098  10.21   -   4.7   4.4   5.6   -   32.5   39.5   44.2
  现有H60   580   0:20   0:40  0.098  10.21   -   5.9   5.1   5.9   -   32.5   39.5   51.1
在50℃进行湿气快速侵蚀,将本发明玻纤水泥与中碱玻璃纤维或抗碱玻璃纤维复合,另将I型低碱度水泥或硅酸盐水泥与中碱玻璃纤维或碱玻璃纤维复合,进行对比试验,结果表明,本发明玻纤水泥对玻璃纤维的侵蚀要比现有硅酸盐水泥和低碱度水泥轻得多,其耐久性相当于I型低碱度硫铝酸盐水泥2倍多,是硅酸盐水泥的50倍,结果列在表2中。
                                  表2
Figure A9811726700071
本发明玻纤水泥复合玻璃纤维耐久性科学计算推理,在自然环境非承重条件下,以玻璃纤维强度衰减到50%时为使用年限:其对比数据见表3。
                  表3
    硅酸盐水泥复合中碱玻璃纤维耐久性为1年硅酸盐水泥复合抗碱玻璃纤维耐久性为17年I型低碱度水泥复合中碱玻璃纤维耐久性为20年I型低碱度水泥复合抗碱玻璃纤维耐久性为62年玻纤水泥复合中碱玻璃纤维耐久性为52年玻纤水泥复合抗碱玻璃纤维耐久性为155年
在自然环境非承重条件下,玻纤水泥复合中碱玻纤,以其中玻璃纤维强度保留率50%为限,耐久性可达50年以上,而若复合抗碱玻璃纤维耐久性可达百年以上。
本发明的优点如下:
本发明玻纤水泥可用于复合中碱玻璃纤维或抗碱玻璃纤维生产玻璃纤维增强水泥(GRC)制品和早强高强水泥混凝土,用其加一定量着色剂磨制成彩色水泥,制成制品耐久性好,耐候性好,不变形,不褪色,不泛白结霜,可用于彩色混凝土,无机涂料,人造彩石(包括人造大理石和人造花岗岩等)。

Claims (3)

1.一种用于制作玻璃纤维增强水泥制品的玻纤水泥,其特征是在CaO-SiO2-Al2O3-CaSO4系统中引进Zn和Zr离子,其熟料是在1250~1400℃温度和氧化或中性气氛中煅烧成的以硫铝酸钙固溶Zn和Zr离子的固溶体为主要矿相组成的玻纤水泥熟料,其化学组成范围,以重量百分数表示如下:
SiO2                8~13%
Al2O3              25~35%
Fe2O3              1~6%
CaO                  40~48%
TiO2                0~3%
MgO                  0~3%
SO3                 8~12%
ZnO                  0.5~2%
ZrO2                1~3%
2.根据权利要求1所述的玻纤水泥,其特征在于:其熟料的最佳组成范围以重量百分数表示如下:
SiO2                  8~10%
Al2O3                32~35%
Fe2O3                1~3%
CaO                    42~45%
TiO2                  <3%
MgO                    <3%
SO3                   8~11%
ZnO                    0.5~1.5%
ZrO2                  1~2%
3.根据权利要求1或2所述的玻纤水泥,其特征在于:在上述玻纤水泥熟料中加一定量石膏和外加剂磨制而成。
石膏配入量按下列公式计算
设熟料为100重量份,石膏配入量 式中M为系数,根据对早期强度,容重大小的要求不同,其系数从0.5至10,Al2O3为熟料中Al2O3%(重量),SO3为石膏中SO3%(重量)。
要求容重轻时,M选的小一些,要求早期强度高时,M选的高一些,加入外加剂种类为柠檬酸0.3~0.5%;石灰石10%~30%;凝灰岩5~20%。
CN98117267A 1998-08-14 1998-08-14 玻纤水泥 Expired - Fee Related CN1089322C (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398478C (zh) * 2006-08-24 2008-07-02 章永泰 高钙离子水泥

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2132439C (en) * 1990-03-23 2000-06-13 Gary L. Vondran Interground fiber cement
CN1084149A (zh) * 1992-09-09 1994-03-23 钟家根 无机玻纤增强材料

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100398478C (zh) * 2006-08-24 2008-07-02 章永泰 高钙离子水泥

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