50
GROUNDWORKS & DRAINAGE
Delta case study: Type A and Type C Waterproofing T
he scope of the project was to facilitate a combined waterproofing solution. For any structure below ground, either
fully or partially, waterproofing is essential for protecting and preserving integrity. BS 8102:2022 defines the three main methods of waterproofing protection as Type A (Barrier), Type B (Structurally Integral) and Type C (Drained).
When choosing and installing waterproofing protection,
waterproofing, protection,
for habitable spaces. consider the
structure, ground conditions, and intended use.
systems should have different performance traits to reduce failure risks.
It’s advisable to use two types of known as combination These
Ensuring
consistent protection and assessing the compatibility of different systems is crucial to lower risk and avoid later adjustments.
Methodology
The structure required a new concrete slab which enabled the specification of Delta Amphibia, a Type A System and Delta Cavity Drainage Membranes, a Type C System.
Phase 1
Before the concrete slab was poured, Delta Amphibia, a primary waterproofing solution, was applied in a Type
A
waterproofing application. Delta
Amphibia, Phase 2 a pre-applied, fully,
and permanently bonded waterproofing membrane (active core liner), has unique features – it’s four active layers: a Waterproof Barrier, a Reactive Core for self-sealing and healing, an Active Barrier that resists water movement, and a strong Bonding Layer which will form a permanent mechanical bond with fresh concrete.
Pre-applied bonded membranes are used to waterproof concrete in basements and below ground structures on the positive
Prior to the installation of the Type C System, measures were taken to mitigate the hazard of free lime leaching. This was accomplished through an application of Koster Polysil TG 500.
Continuity is crucial construction and waterproofing.
for successful BS
8102:2022 places emphasis on good planning, correct sequencing and that site management processes are in operation. The Delta Type C System is suitable for new construction and renovations.
Results
This reliable, top-quality combined system approach meets the highest industry standards for comprehensive structural waterproofing.
Whatever the needs of your project, you can rely on Delta’s Technical Team to ensure you get the right advice, support, and practical help at exactly the right time its required. Contact Delta today.
01992 523 523
info@deltamembranes.com
side (outside). They are installed before the reinforcement underneath a base slab and vertically on a soil retention system, or in a formwork.
It features BBA certified cavity drainage membranes, drainage conduits, chambers, sump pumps, and high-water level alarms and/or control systems.
ADF05_Delta_Groundworks -
Drainage_FPAdv.indd 2
WWW.ARCHITECTSDATAFILE.CO.UK
02/05/2024 08:50 ADF MAY 2024
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84
