Crystalline phase compositions of cements before and after sulfuric acid exposure; ICDD numbers in parentheses
| Principal phases | Secondary phases | Non-reacted phases |
|---|---|---|
| TSRC-1 before exposure | ||
| Boehmite AlO(OH) (01-074-2895) Hydroxysodalite Na4Al3Si3O12(OH) (00-011-0401) Katoite Ca3Al2(SiO4)(OH)8 (04-014-1869) | Calcium carbonate CaCO3 (04-006-5444/01-085-0849) | Quartz SiO2 (04-006-2057) Corundum Al2O3 (04-008-3293) Mullite Al6Si12O13 (00-015-0776) Hematite Fe2O3 (00-001-1053) |
| TSRC-1 after exposure, core | ||
| Dmisteinbergite CaAl2Si2O8 (04-011-5220) Boehmite AlO(OH) (01-074-2896) | Anorthite CaAl2Si2O8 (04-012-1276) Garronite Ca3Al2(SiO4)3 (00-039-1374) Calcium carbonate CaCO3 (04-006-5444/01-085-0849) Harmotome Na3Al3Si5O16(H2O)6·5 (04-009-5432) Analcime Na8Al8Si16O48(H2O)8 (04-011-6233) Hydroxysodalite Na4Al3Si3O12(OH) (00-011-0401) Katoite Ca3Al2(SiO4)(OH)8 (04-014-1869) | Corundum Al2O3 (04-005-4497) Mullite Al6Si12O13 (00-015-0776) Quartz SiO2 (01-077-8621) Hematite Fe2O3 (01-080-5407/08/09/04-002-5211) |
| TSRC-1 after exposure, surface | ||
| Alunite KAl3(SO4)(OH)6 (00-047-1884) Boehmite AlOOH (01-073-9093) | Anorthite CaAl2Si2O8 (00-041-1486) Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) | Corundum Al2O3 (04-005-4497) Mullite Al6Si12O13 (01-079-1452) Quartz SiO2 (01-083-0539) Hematite Fe2O3 (04-002-2983) |
| TSRC-2 before exposure | ||
| Boehmite AlO(OH) (04-010-5683) Katoite Ca3Al2(OH)12 (04-017-4319) | Calcite Ca(CO3) (01-083-0577) | Gehlenite Al2Ca2O7Si (04-015-7930) Quartz SiO2 (01-083-0542/01-073-1748) Perovskite CaTiO3 (00-022-0153) Hematite Fe2O3 (00-039-1346) |
| TSRC-2 after exposure, core | ||
| Dmistenbeirgite CaAl2Si2O8 (00-051-0064) Bassanite CaSO4(H2O)0·67 (00-036-0617) Boehmite AlO(OH) (04-010-5683) | Katoite Ca2·93Al1·97(Si0·64O2·56)(OH)9·44 (01-077-1713) Analcime Na1·71((Al1·806Si4·194)O12)(H2O)2·16 (01-075-8689) Anhydrate CaSO4 (01-072-0916) Gypsum CaSO4(H2O)2 (01-079-5985) Calcite CaCO3 (01-080-2791/01-083-0577) | Hematite Fe2O3 (04-014-7214) Gehlenite Al2Ca2O7Si (04-015-7930) Perovskite CaTiO3 (01-081-0561) |
| TSRC-2 after exposure, surface | ||
| Alunite (K0·805Na0·132(H2O)0·063)Al3(SO4)2(OH)6 (01-075-9141/00-001-0879) Boehmite AlO(OH) (04-010-5683) Bassanite Ca3(SO4)3(H2O)1·8 (04-011-1767/01-072-4535) | Dmisteinbergite CaAl2Si2O8 (00-051-0064) Anhydrate CaSO4 (01-072-0916) | Quartz SiO2 (04-007-1438/04-011-9932/01-075-1555) Perovskite CaTiO3 (00-022-0153) Hematite Fe2O3 (00-001-1053) |
| TSRC-3 before exposure | ||
| Anorthite CaAl2Si2O8 (00-012-0301/04-011-2514) Garronite Na8Ca2·82(Al6Si10O32)(H2O)12·08/Na0·1Ca1·35Al2·8Si5·2O16(H2O)7 (01-079-1336/04-0121546) Harmotome Na3Al3Si5O16(H2O)6·5 (04-009-5432) | Boehmite AlOOH (00-021-1307) Gobbinsite Na3Al3Si5O66(H2O)6 (00-025-0779) Katoite Ca3Al2(SiO4)1·53(OH)5·88 (04-014-9841) Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) Gismondine (01-076-8378) Calcium carbonate CaCO3 (04-017-9180/04-002-9082) | Corundum Al2O3 (04-013-1687/04-005-4500) Quartz SiO2 (01-085-0794/01-086-1564) Mullite (Al2·34Si0·66)O4·83 (01-076-2579) |
| TSRC-3 after exposure, core | ||
| Katoite silician Ca3Al2(SiO4)1·53(OH)5·88 (04-014-9841) | Boehmite AlOOH (01-074-2897/01-074-2896) Garronite NaCa2·5(Al6Si10)O32(H2O)14 (00-059-0383) Anorthite CaAl2Si2O8 (04-011-2883) Alunite KAl3(SO4)(OH)6 (00-047-1884) Katoite Ca3Al2(OH)12 (04-017-4320) Analcime Na8Al8Si16O48(H2O)8 (04-011-6756) Gismondine (01-076-8378) Calcium carbonate CaCO3 (04-017-9180/04-002-9082) | Quartz SiO2 (01-078-1252) Hematite Fe2O3 (04-015-9577/01-080-5406) Corundum Al2O3 (01-0751862) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) |
| TSRC-3 after exposure, surface | ||
| Boehmite AlOOH (04-010-5683/04016-2858) Bassanite CaSO4(H2O)0·67 (00-036-0617) | Alunite KAl3(SO4)(OH)6 (04-014-9927) Gorgeyite K2Ca5(SO4)6(H2O) (00-018-0997) Analcime Na8Al8Si16O48(H2O)8 (04-011-6233) Anhydrate CaSO4 (04-007-4744) Hedenbergite Na0·45Ca0·55FeSi2O6 (04-013-1878) | Quartz SiO2 (04-008-2359) Corundum Al2O3 (04-015-8996) Mullite Al2(Al2·8Si1·2)O9·54 (01-084-1205) |
| TSRC-4 before exposure | ||
| Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) Garronite NaCa2·5(Al6Si10)O32.14H2O (00-059-0383) | Phillipsite K (K, Na)2(Si, Al)8O16.4H2O (00-046-1427) Gismondine Ca4(Al8Si8O32)(H2O)19 (01-076-8378) Katoite Ca3Al2(OH)12 (04-017-4322) Calcium carbonate CaCO3 (04-014-1837/01-081-9561) | Quartz SiO2 (01-085-0865) Gehlenite Al2Ca2O7Si (04-015-7930) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) Hematite Fe2O3 (00-001-1053) Perovskite CaTiO3 (00-022-0153 |
| TSRC-4 after exposure, core | ||
| Garronite NaCa2·5(Al6Si10)O32.14H2O (00-059-0383) | Phillipsite (K, Na)2(Si, Al)8O16.4H2O (00-046-1427) Bassanite Ca0·98Na0·03SO4.0·47H2O (00-037-0246) Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) Gismondine Ca4(Al8Si8O32)(H2O)19 (01-076-8378) Gypsum CaSO4.2H2O (04-010-9409) Katoite Ca3Al2(OH)12 (04-017-4322) Calcium carbonate CaCO3 (04-014-1837/01-081-9561) | Quartz SiO2 (01-085-0865) Gehlenite Al2Ca2O7Si (04-015-7930) Perovskite (00-022-0153) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) Hematite Fe2O3 (00-001-1053) |
| TSRC-4 after exposure, surface | ||
| Alunite KAl3(SO4)2(OH)6 (00-047-1885) Bassanite Ca0·98Na0·03SO4.0·47H2O (00-037-0246) | Gorgeyite K2Ca5(SO4)6(H2O) (04-012-5273) Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) Anhydrate CaSO4 (01-074-2421) Phillipsite (K, Na)2(Si, Al)8O16.4H2O (00-046-1427) Garronite NaCa2·5(Al6Si10)O32.14H2O (00-059-0383) Gismondine Ca4(Al8Si8O32)(H2O)19 (01-076-8378) | Quartz SiO2 (01-075-8320) Gehlenite Al2Ca2O7Si (04-015-7930) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) Perovskite CaTiO3 (00-022-0153) Hematite Fe2O3 (00-001-1053) |
| CPC before exposure | ||
| Dmisteinbergite CaAl2Si2O8 (00-051-0064) | Anorthite CaAl2Si2O8 (00-041-1486) Calcium hydrogen phosphate CaHPO4 (01-075-1520) Analcime NaSi2AlO6H2O (00-019-1180) Carbonated hydroxylapatite (Ca3·13Na0·53)(Ca4·66Na0·79)(PO4)4·3(CO3)1·7(OH)0·74(H2O)1·3 (01-073-7334) Katoite silician Ca3Al2(SiO4)(OH)8 (00-038-0368) Portlandite Ca(OH)2 (00-050-0008) Calcium carbonate CaCO3 (04-014-1601) Hydroxylapatite Ca5(PO4)3(OH) (04-016-1709) Boehmite AlOOH (01-074-2896) | Perovskite CaTiO3 (00-022-0153) Gehlenite Al2Ca2O7Si (04-013-2147) Quartz SiO2 (01-085-0457) Hematite Fe2O3 (04-003-1445) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) |
| CPC after exposure, core | ||
| Dmisteinbergite CaAl2Si2O8 (04-011-6236) Hydroxylapatite Ca4·758(H0·21(PO4))(OH)0·726 (01-07409764) | Carbonated hydroxylapatite (Ca3·13Na0·53)(Ca4·66Na0·79)(PO4)4·3(CO3)1·7(OH)0·74(H2O)1·3 (01-073-7334) Anorthite CaAl2Si2O8 (04-012-1276) Phillipsite K2·5 NaSi11·3Al4·7O32.13H2O (00-051-1497) Katoite Ca2·93Al1·97(Si0·64O)(OH)9·44 (01-077-1713) Calcium hydrogen phosphate CaHPO4 (01-075-1520) Calcium carbonate CaCO3 (04-014-1601) Hydroxylapatite sulfonated Ca4·95(P O4)2·9(SO4)0·1(OH) (04-013-7494) | Quartz SiO2 (04-018-0234) Gehlenite Al2Ca2O7Si (04-015-7931) Hematite Fe2O3 (01-089-0597) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) |
| CPC after exposure, surface | ||
| Gypsum CaSO4 (H2O)2 (04-009-1810/00-033-0311/04-015-4421) | Boehmite AlOOH (04-016-2858/01-073-9093) Anorthite CaAl2Si2O8 (04-012-1276) Dmisteinbergite CaAl2Si2O8 (04-011-6236) | Gehlenite Al2Ca2O7Si (04-015-7930) Quartz SiO2 (01-085-0798/04-007-1438/04-007-1808) Perovskite CaTiO3 (01-073-9783) Mullite Al(Al0·69Si1·22O4·85) (01-089-2644) Corundum Al2O3 (04-007-9625) |
| Class G/silica before exposure | ||
| Tobermorite 9A Ca5Si6O16(OH)2 (04-012-1761) Calcium carbonate CaCO3 (04-006-6528/04-011-5985/01-075-9987) | Portlandite Ca(OH)2 (00-050-0008) | Quartz SiO2 (04-006-1757) Brownmillerite Ca2Fe1·63Al0·37O5 (04-015-8017) |
| Class G/silica after exposure, core | ||
| Tobermorite 9A Ca5Si6O16(OH)2 (04-012-1761) Gypsum CaSO4(H2O)2 (00-033-0311) | Iron oxide hydroxide FeOOH (04-015-8205) Calcium carbonate CaCO3 (01-081-2502) | Quartz SiO2 (04-015-7167) Brownmillerite Ca2Fe1·63Al0·37O5/Ca2FeAlO5 (04-015-8017/04-011-5939) |
| Class G/silica after exposure, surface | ||
| Gypsum CaSO4(H2O)2 (00-033-0311) | Quartz SiO2 (04-015-7167) Brownmillerite Ca2Fe1·63Al0·37O5 (04-015-8017/04-011-5939) | |
| Principal phases | Secondary phases | Non-reacted phases |
|---|---|---|
| TSRC-1 before exposure | ||
| Boehmite AlO(OH) (01-074-2895) | Calcium carbonate CaCO3 (04-006-5444/01-085-0849) | Quartz SiO2 (04-006-2057) |
| TSRC-1 after exposure, core | ||
| Dmisteinbergite CaAl2Si2O8 (04-011-5220) | Anorthite CaAl2Si2O8 (04-012-1276) | Corundum Al2O3 (04-005-4497) |
| TSRC-1 after exposure, surface | ||
| Alunite KAl3(SO4)(OH)6 (00-047-1884) | Anorthite CaAl2Si2O8 (00-041-1486) | Corundum Al2O3 (04-005-4497) |
| TSRC-2 before exposure | ||
| Boehmite AlO(OH) (04-010-5683) | Calcite Ca(CO3) (01-083-0577) | Gehlenite Al2Ca2O7Si (04-015-7930) |
| TSRC-2 after exposure, core | ||
| Dmistenbeirgite CaAl2Si2O8 (00-051-0064) | Katoite Ca2·93Al1·97(Si0·64O2·56)(OH)9·44 (01-077-1713) | Hematite Fe2O3 (04-014-7214) |
| TSRC-2 after exposure, surface | ||
| Alunite (K0·805Na0·132(H2O)0·063)Al3(SO4)2(OH)6 (01-075-9141/00-001-0879) | Dmisteinbergite CaAl2Si2O8 (00-051-0064) | Quartz SiO2 (04-007-1438/04-011-9932/01-075-1555) |
| TSRC-3 before exposure | ||
| Anorthite CaAl2Si2O8 (00-012-0301/04-011-2514) | Boehmite AlOOH (00-021-1307) | Corundum Al2O3 (04-013-1687/04-005-4500) |
| TSRC-3 after exposure, core | ||
| Katoite silician Ca3Al2(SiO4)1·53(OH)5·88 (04-014-9841) | Boehmite AlOOH (01-074-2897/01-074-2896) | Quartz SiO2 (01-078-1252) |
| TSRC-3 after exposure, surface | ||
| Boehmite AlOOH (04-010-5683/04016-2858) | Alunite KAl3(SO4)(OH)6 (04-014-9927) | Quartz SiO2 (04-008-2359) |
| TSRC-4 before exposure | ||
| Analcime Na8Al8Si16O48(H2O)8 (04-011-7963) | Phillipsite K (K, Na)2(Si, Al)8O16.4H2O (00-046-1427) | Quartz SiO2 (01-085-0865) |
| TSRC-4 after exposure, core | ||
| Garronite NaCa2·5(Al6Si10)O32.14H2O (00-059-0383) | Phillipsite (K, Na)2(Si, Al)8O16.4H2O (00-046-1427) | Quartz SiO2 (01-085-0865) |
| TSRC-4 after exposure, surface | ||
| Alunite KAl3(SO4)2(OH)6 (00-047-1885) | Gorgeyite K2Ca5(SO4)6(H2O) (04-012-5273) | Quartz SiO2 (01-075-8320) |
| CPC before exposure | ||
| Dmisteinbergite CaAl2Si2O8 (00-051-0064) | Anorthite CaAl2Si2O8 (00-041-1486) | Perovskite CaTiO3 (00-022-0153) |
| CPC after exposure, core | ||
| Dmisteinbergite CaAl2Si2O8 (04-011-6236) | Carbonated hydroxylapatite (Ca3·13Na0·53)(Ca4·66Na0·79)(PO4)4·3(CO3)1·7(OH)0·74(H2O)1·3 (01-073-7334) | Quartz SiO2 (04-018-0234) |
| CPC after exposure, surface | ||
| Gypsum CaSO4 (H2O)2 (04-009-1810/00-033-0311/04-015-4421) | Boehmite AlOOH (04-016-2858/01-073-9093) | Gehlenite Al2Ca2O7Si (04-015-7930) |
| Class G/silica before exposure | ||
| Tobermorite 9A Ca5Si6O16(OH)2 (04-012-1761) | Portlandite Ca(OH)2 (00-050-0008) | Quartz SiO2 (04-006-1757) |
| Class G/silica after exposure, core | ||
| Tobermorite 9A Ca5Si6O16(OH)2 (04-012-1761) | Iron oxide hydroxide FeOOH (04-015-8205) | Quartz SiO2 (04-015-7167) |
| Class G/silica after exposure, surface | ||
| Gypsum CaSO4(H2O)2 (00-033-0311) | Quartz SiO2 (04-015-7167) | |
Sharing content requires targeting cookies to be enabled. Please update your cookie preferences to use this feature.