Figure 1

Figure 2
![Technical conditions according to ATV 143-2; a) technical condition I; b) technical condition II; c) technical condition III; d) technical condition III a [5].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6473793b4e662f30ba53f835/j_sgem-2021-0002_fig_002.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKIEI4XKH2%2F20260316%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260316T034853Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAAaDGV1LWNlbnRyYWwtMSJGMEQCICxb5pbS5doLZnyseWkJL7iStd9Qn3mYfQzBLYmlH1L3AiA5DjGZdOApXq7DeQhZTRnX4EC3ZTTwxx9uzuvMcD0nnirFBQjJ%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAIaDDk2MzEzNDI4OTk0MCIMyuBtKSe08Qe7LwgiKpkFXDlIdYSSZICWxharGKMOyPZMbW4%2BPpj8Vj6i4THVVFYtwrfGQCM%2FbHTy1l%2Bez7Qut8WOpb2kidyZ%2BeiBZPTnj0hTLpva0RSBxLeUnUkFhYFEVhjDoPkFaUBzSUo1udKCc9YAWu5QlMR8MR4crBTT3fHibrSKweqGRT0YPHUZ7Fvl9NW%2BJdL1BU3pBOfhpO0pgZMDW8zqIh3c2bexI%2FKe4E%2FK85HHQ%2FmYFhMJX0TQMGkv2Ma6i9yn0UybTnQIgzKwfd7t08rYGKM7ULGaBjs3beFCwcN70orgnaWn227Ynaug2q6I4fmvT7Qo%2FFmqXINNx4CpH1sAna4TJmBVMU42VdMMr9Y3SdPdLugB%2FOthGNV3z1UWx5tVCa%2FRDOeTiqLQc6whckPhdoxXMyCt7AX511%2BScx31gans8p99jSZBqHNt9rauUTI8QlXVSZsnkT7PnuuCA26z2KBjfc2IzbJPwUg%2FjEi%2BuYGy7%2Faxfo9jJPPrABPGELIj641pOU1gC%2FB6yqbqXl6dFoSgSLMg5zkTihLWw3QPSGxrLCuyAV29jKAIQbQDQkh4ou4LgjyGxGMU4hd6y2MWBO%2Bg%2FlDV5d27QTMIpfS8IvaMKEqPTXxzTpwisa0IZ796AwJLN4ydE%2FrrRRuLOQcScojcTdxAfWE6bHM%2FU1SyCMzZ9g9Sn7QaH0tf2MKFiJz0Z9%2BxK4F1PI9CdvGq0KDqZqiRXK6RnwzrvSDS3Jih75NGcu0sV08QEXvr9dCP8cYOysROQdkxQadKV8peGBc%2Flw5zky99Lyksj64%2BUPHrLqfWWguUePgejeSsVGg13dM6Hm4t06FMrYNLA%2FMzssnREDMHtCC1zaCktc%2BHzroDAP2WGrOJaYe98lp8nn6tR3D30dUwsILdzQY6sgH8RK4DHoOlPVv4GtOnWCntka3BEtiflmbzzChBIkcEfDs5KDkVlBCWTFJQo%2FQ7bf1taDg5ly4F%2B7Cti%2BOKPw3Jm%2BF1wwJGlNSro1ZeZHzZXuL3eEpli8THZp5q7yg0I48eeeB4mCjm3TNGxnoa4t1RxBaLmq4O69eFF8lqEjWv3XpHfsZDLHtOMTAPpay9ImrSgvPXnQYlBEdoqLVJtm%2Blpg4bf3pBgxFieN1B47p0s8oU&X-Amz-Signature=ffac1974e27655c0a20a6cac5355bc806fa4956388aeeb707f90ea6127d565d1&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 3

Figure 4
![Illustration of the GWT method for measuring water permeability [30].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6473793b4e662f30ba53f835/j_sgem-2021-0002_fig_004.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKIEI4XKH2%2F20260316%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260316T034853Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAAaDGV1LWNlbnRyYWwtMSJGMEQCICxb5pbS5doLZnyseWkJL7iStd9Qn3mYfQzBLYmlH1L3AiA5DjGZdOApXq7DeQhZTRnX4EC3ZTTwxx9uzuvMcD0nnirFBQjJ%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAIaDDk2MzEzNDI4OTk0MCIMyuBtKSe08Qe7LwgiKpkFXDlIdYSSZICWxharGKMOyPZMbW4%2BPpj8Vj6i4THVVFYtwrfGQCM%2FbHTy1l%2Bez7Qut8WOpb2kidyZ%2BeiBZPTnj0hTLpva0RSBxLeUnUkFhYFEVhjDoPkFaUBzSUo1udKCc9YAWu5QlMR8MR4crBTT3fHibrSKweqGRT0YPHUZ7Fvl9NW%2BJdL1BU3pBOfhpO0pgZMDW8zqIh3c2bexI%2FKe4E%2FK85HHQ%2FmYFhMJX0TQMGkv2Ma6i9yn0UybTnQIgzKwfd7t08rYGKM7ULGaBjs3beFCwcN70orgnaWn227Ynaug2q6I4fmvT7Qo%2FFmqXINNx4CpH1sAna4TJmBVMU42VdMMr9Y3SdPdLugB%2FOthGNV3z1UWx5tVCa%2FRDOeTiqLQc6whckPhdoxXMyCt7AX511%2BScx31gans8p99jSZBqHNt9rauUTI8QlXVSZsnkT7PnuuCA26z2KBjfc2IzbJPwUg%2FjEi%2BuYGy7%2Faxfo9jJPPrABPGELIj641pOU1gC%2FB6yqbqXl6dFoSgSLMg5zkTihLWw3QPSGxrLCuyAV29jKAIQbQDQkh4ou4LgjyGxGMU4hd6y2MWBO%2Bg%2FlDV5d27QTMIpfS8IvaMKEqPTXxzTpwisa0IZ796AwJLN4ydE%2FrrRRuLOQcScojcTdxAfWE6bHM%2FU1SyCMzZ9g9Sn7QaH0tf2MKFiJz0Z9%2BxK4F1PI9CdvGq0KDqZqiRXK6RnwzrvSDS3Jih75NGcu0sV08QEXvr9dCP8cYOysROQdkxQadKV8peGBc%2Flw5zky99Lyksj64%2BUPHrLqfWWguUePgejeSsVGg13dM6Hm4t06FMrYNLA%2FMzssnREDMHtCC1zaCktc%2BHzroDAP2WGrOJaYe98lp8nn6tR3D30dUwsILdzQY6sgH8RK4DHoOlPVv4GtOnWCntka3BEtiflmbzzChBIkcEfDs5KDkVlBCWTFJQo%2FQ7bf1taDg5ly4F%2B7Cti%2BOKPw3Jm%2BF1wwJGlNSro1ZeZHzZXuL3eEpli8THZp5q7yg0I48eeeB4mCjm3TNGxnoa4t1RxBaLmq4O69eFF8lqEjWv3XpHfsZDLHtOMTAPpay9ImrSgvPXnQYlBEdoqLVJtm%2Blpg4bf3pBgxFieN1B47p0s8oU&X-Amz-Signature=9acf6c83cb66f49639f5c7739eb59de04049adb0c913012f37c4e34a9c138890&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 5

Figure 6
![Accuracy requirements for the determination of the flexural modulus [18].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6473793b4e662f30ba53f835/j_sgem-2021-0002_fig_006.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKIEI4XKH2%2F20260316%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260316T034853Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAAaDGV1LWNlbnRyYWwtMSJGMEQCICxb5pbS5doLZnyseWkJL7iStd9Qn3mYfQzBLYmlH1L3AiA5DjGZdOApXq7DeQhZTRnX4EC3ZTTwxx9uzuvMcD0nnirFBQjJ%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAIaDDk2MzEzNDI4OTk0MCIMyuBtKSe08Qe7LwgiKpkFXDlIdYSSZICWxharGKMOyPZMbW4%2BPpj8Vj6i4THVVFYtwrfGQCM%2FbHTy1l%2Bez7Qut8WOpb2kidyZ%2BeiBZPTnj0hTLpva0RSBxLeUnUkFhYFEVhjDoPkFaUBzSUo1udKCc9YAWu5QlMR8MR4crBTT3fHibrSKweqGRT0YPHUZ7Fvl9NW%2BJdL1BU3pBOfhpO0pgZMDW8zqIh3c2bexI%2FKe4E%2FK85HHQ%2FmYFhMJX0TQMGkv2Ma6i9yn0UybTnQIgzKwfd7t08rYGKM7ULGaBjs3beFCwcN70orgnaWn227Ynaug2q6I4fmvT7Qo%2FFmqXINNx4CpH1sAna4TJmBVMU42VdMMr9Y3SdPdLugB%2FOthGNV3z1UWx5tVCa%2FRDOeTiqLQc6whckPhdoxXMyCt7AX511%2BScx31gans8p99jSZBqHNt9rauUTI8QlXVSZsnkT7PnuuCA26z2KBjfc2IzbJPwUg%2FjEi%2BuYGy7%2Faxfo9jJPPrABPGELIj641pOU1gC%2FB6yqbqXl6dFoSgSLMg5zkTihLWw3QPSGxrLCuyAV29jKAIQbQDQkh4ou4LgjyGxGMU4hd6y2MWBO%2Bg%2FlDV5d27QTMIpfS8IvaMKEqPTXxzTpwisa0IZ796AwJLN4ydE%2FrrRRuLOQcScojcTdxAfWE6bHM%2FU1SyCMzZ9g9Sn7QaH0tf2MKFiJz0Z9%2BxK4F1PI9CdvGq0KDqZqiRXK6RnwzrvSDS3Jih75NGcu0sV08QEXvr9dCP8cYOysROQdkxQadKV8peGBc%2Flw5zky99Lyksj64%2BUPHrLqfWWguUePgejeSsVGg13dM6Hm4t06FMrYNLA%2FMzssnREDMHtCC1zaCktc%2BHzroDAP2WGrOJaYe98lp8nn6tR3D30dUwsILdzQY6sgH8RK4DHoOlPVv4GtOnWCntka3BEtiflmbzzChBIkcEfDs5KDkVlBCWTFJQo%2FQ7bf1taDg5ly4F%2B7Cti%2BOKPw3Jm%2BF1wwJGlNSro1ZeZHzZXuL3eEpli8THZp5q7yg0I48eeeB4mCjm3TNGxnoa4t1RxBaLmq4O69eFF8lqEjWv3XpHfsZDLHtOMTAPpay9ImrSgvPXnQYlBEdoqLVJtm%2Blpg4bf3pBgxFieN1B47p0s8oU&X-Amz-Signature=db2177f124987621973b8b3c4c589e187fd068f5f8d769629276dd1d577587c5&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)
Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16


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![Illustration of the GWT method for measuring water permeability [30].](https://sciendo-parsed.s3.eu-central-1.amazonaws.com/6473793b4e662f30ba53f835/j_sgem-2021-0002_fig_004.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=ASIA6AP2G7AKIEI4XKH2%2F20260316%2Feu-central-1%2Fs3%2Faws4_request&X-Amz-Date=20260316T034853Z&X-Amz-Expires=3600&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEAAaDGV1LWNlbnRyYWwtMSJGMEQCICxb5pbS5doLZnyseWkJL7iStd9Qn3mYfQzBLYmlH1L3AiA5DjGZdOApXq7DeQhZTRnX4EC3ZTTwxx9uzuvMcD0nnirFBQjJ%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F8BEAIaDDk2MzEzNDI4OTk0MCIMyuBtKSe08Qe7LwgiKpkFXDlIdYSSZICWxharGKMOyPZMbW4%2BPpj8Vj6i4THVVFYtwrfGQCM%2FbHTy1l%2Bez7Qut8WOpb2kidyZ%2BeiBZPTnj0hTLpva0RSBxLeUnUkFhYFEVhjDoPkFaUBzSUo1udKCc9YAWu5QlMR8MR4crBTT3fHibrSKweqGRT0YPHUZ7Fvl9NW%2BJdL1BU3pBOfhpO0pgZMDW8zqIh3c2bexI%2FKe4E%2FK85HHQ%2FmYFhMJX0TQMGkv2Ma6i9yn0UybTnQIgzKwfd7t08rYGKM7ULGaBjs3beFCwcN70orgnaWn227Ynaug2q6I4fmvT7Qo%2FFmqXINNx4CpH1sAna4TJmBVMU42VdMMr9Y3SdPdLugB%2FOthGNV3z1UWx5tVCa%2FRDOeTiqLQc6whckPhdoxXMyCt7AX511%2BScx31gans8p99jSZBqHNt9rauUTI8QlXVSZsnkT7PnuuCA26z2KBjfc2IzbJPwUg%2FjEi%2BuYGy7%2Faxfo9jJPPrABPGELIj641pOU1gC%2FB6yqbqXl6dFoSgSLMg5zkTihLWw3QPSGxrLCuyAV29jKAIQbQDQkh4ou4LgjyGxGMU4hd6y2MWBO%2Bg%2FlDV5d27QTMIpfS8IvaMKEqPTXxzTpwisa0IZ796AwJLN4ydE%2FrrRRuLOQcScojcTdxAfWE6bHM%2FU1SyCMzZ9g9Sn7QaH0tf2MKFiJz0Z9%2BxK4F1PI9CdvGq0KDqZqiRXK6RnwzrvSDS3Jih75NGcu0sV08QEXvr9dCP8cYOysROQdkxQadKV8peGBc%2Flw5zky99Lyksj64%2BUPHrLqfWWguUePgejeSsVGg13dM6Hm4t06FMrYNLA%2FMzssnREDMHtCC1zaCktc%2BHzroDAP2WGrOJaYe98lp8nn6tR3D30dUwsILdzQY6sgH8RK4DHoOlPVv4GtOnWCntka3BEtiflmbzzChBIkcEfDs5KDkVlBCWTFJQo%2FQ7bf1taDg5ly4F%2B7Cti%2BOKPw3Jm%2BF1wwJGlNSro1ZeZHzZXuL3eEpli8THZp5q7yg0I48eeeB4mCjm3TNGxnoa4t1RxBaLmq4O69eFF8lqEjWv3XpHfsZDLHtOMTAPpay9ImrSgvPXnQYlBEdoqLVJtm%2Blpg4bf3pBgxFieN1B47p0s8oU&X-Amz-Signature=9acf6c83cb66f49639f5c7739eb59de04049adb0c913012f37c4e34a9c138890&X-Amz-SignedHeaders=host&x-amz-checksum-mode=ENABLED&x-id=GetObject)

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© 2021 Tomasz Abel, published by Wroclaw University of Science and Technology
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